For me: HotelPal FlightTrack PRO Kayak ITA OnTheFly Non travel apps I love: Weatherbug, Mixzing and Soundhound.
Yes, they are.I have TripIt Pro for my desktop, but FlightTrack PRO has tripit sync integrated, so I don't use a mobile version of it.
my number one travel app is Wireless Tether. You have to root your phone, but it is amazing. I use it on my Sprint Evo so I can get 4G speeds on my laptop. It's really nice not having to worry about hotel WiFi.
I too use Wireless Tether although it's now less useful to me since I primarily need it for travel outside the US - and unlimited global data without using a 3rd party is basically impossible. Some not yet listed in previous posts: Deutsche Bahn Rail Navigator - Look up rail timetables for the entire European continent SNCF Direct - Limited to France Rail Planner Live - Limited to UK Flightview Free - Pay to remove ads My Tracks - Record & share your GPS tracks Worldmate - I still prefer Worldmate Live to TripIt. Google Translate - 50 languages, voice input, text-to-speech, always improving too. Google Voice - avoid high cost of global texting by using data and having same # worldwide. Also good for cheap international calling from within the US. Also gives you Visual Voicemail with or without using your Google Voice number. Google Voice numbers not available to non-US residents, however. Skype - Skype lets you make calls over WiFi anywhere and 3G outside the US, avoiding exorbitant roaming fees. Hacked version found elsewhere also works on 3G within the US. Note this is NOT "Skype Mobile for Verizon" which is unnecessary with the full featured Skype app. There's also a train app as well as a bus app for Ireland I recently used and was satisfied.
I echo the Kayak sentiments, great on the go for checking hotels and cars for me. I also use Yelp on my phone for local restaurant recommendations, found some great spots that way.
I thought of another.. Yelp! It is my go to for finding a place to eat or hang out. I have "discovered" many a place thanks to the community behind Yelp. I am obsessed.
I might if my airline of choice (US - don't laugh) could be checked with any of the various reservation lookup apps or sites.
TripIt Audiogalaxy (so I don't have to sync music before i leave if I'll have internet) Hapi Podcast (so I can listen to the uprgd.com podcasts) LogMeIn Where's My Droid
Actually, with Tether.com, it is not necessary to root. It's $29.99 for the app and software for your laptop/tablet. So far, I have only used it on a couple of business trips, but I have found speeds ok, given I'm tethering off my 3G Verizon phone. I'm not sure I'd want to rely on this to do a lot of uploading, or even downloading, however.
Tether works great - used on my BlackBerry for a couple of years. However, even on Android it still requires a piece of software on your laptop and a USB connection. Rooting a phone and using wireless tether does exactly what the carrier-preinstalled tethering application does - gives you a mobile hotspot. No software or cable needed. A tad less secure this way but I'm not too concerned.
The Droid Fart app has proved useful on flights.... http://www.androidzoom.com/web/indice/qrLink?appCode=ginu&dwnId=15448539
My Nexus One has an entire home screen dedicated just to travel apps. My favorites: Continental Airlines – This really is the model airline app. I can access my OnePass account, my reservations, check in online, save my mobile boarding pass to the app, subscribe to push notifications to update me on flight status, book travel, access airport terminal maps for nearly every airport they serve with mainline aircraft, find Presidents Club locations, and view upgrade standby lists and seat maps with this app. And, as if that weren't enough, Continental's flight status goes beyond any other airline's, by not only telling me the status of my flight, but the status of the preceding flight for my flight's aircraft. Southwest Airlines – I've not flown WN since their Android app was released, but it looks pretty useful. American Airlines – AA just released their Android app today, and it looks decent. It's certainly not full of the information that CO's is, but I've played around with it some tonight (I'm flying AA this week) and it seems to be pretty useful. FlightTrack Pro – There is a paid version and a free version of FlightTrack; this is the paid version. I mostly use this app for its nice home screen widget, which always shows the status of my next flight right on my travel home screen. The paid version includes integration with TripIt, which makes getting all my flights into the FlightTrack Pro app super easy; I forward my e-mail flight confirmation to TripIt when I book a flight, the TripIt Android app sees it, and FlightTrack Pro sees that and adds the flights automatically to its list of trips. I don't use TripIt for anything else, but this feature is quite nice and makes finding flight status very easy, regardless of the airline I'm traveling on. Google Maps/Google Maps Navigation – I have the car dock for my phone and use this app all the time when traveling in places I don't know well to find my way. It's easily one of the best turn-by-turn navigation systems out there, and the fact that it's free and included on my device makes it that much better. I used to own a stand-alone Garmin navigation unit, and this is a far better system than my Garmin was. Priority Club – This is still the only Android app released by a major hotel chain and loyalty program. It's not a bad app at all, other than the fact the thing is unnecessarily huge; even with it stored on my device's SD card, it takes up a lot of memory, and I really can't figure out why. I don't use it all that often, but mostly keep it because it's the only major brand hotel app out there on Android so far. I'd love to see Starwood, Marriott, and Hilton come out with something similar. Open Table – Great for quick restaurant reservations that earn points toward free dining certificates, and for finding good places in big cities. Yelp – Another great source of information on restaurants, shopping, hotels, and virtually anything else you can think of. Foursquare – Good for keeping up where my friends are; I've had unexpected meetings with friends at various airports that wouldn't have happened otherwise thanks to Foursquare on multiple occasions. The tips and geolocation features are also great for finding out what's nearby.
Reading about these Android apps has me so excited. Finally getting a new phone in about 2 weeks, going from old Windows Mobile 6.5 to Android, and I cant wait to have a phone thats going to rock it again!!
PdaNet is my favorite, a great tethering program. Also Google navigation has been a life saver when my Garmin just couldn't get the job done!
TripIt - I love their website, and the app is slowly getting better FlightView free- notifications of takeoff/landings for specific flights, lot of other good data AA app - check check of flights, reservations, etc. Learn German and QuickDic - available in several languages, can be quite handy when reading menus and other situations. This one takes a good bit of space, but doesn't require a network connection (great for CDMA phones) My Tracks - measure route/distance for hiking and kayaking
I used pda.net for tethering as well until my device was upgraded to Froyo. After that upgrade I went to just using the built-in tethering and Wi-Fi hotspot functionality that's in the OS.
Agree on Google Maps for navigation. When I got the phone, the Verizon guy demoed it for me, and I took it for granted until my boyfriend started raving about it. His "brilliant!", "that's fantastic!", and other praises about it made me realize how good it is.
Not necessarily an Android-specific app, but I would have to throw a shout-out to Flightcaster (www.flightcaster.com), which will predict 6 hours before departure the likelihood of your flight taking off on time. Very helpful for a procrastinator like me who likes to wait for the last possible moment to begin packing. Now if only there was an Android app that would pack for me.