Mapquest - free turn by turn navigation
Accuweather, The Weather Channel - just to get a consensus
Facebook, G+, foursquare, LinkedIn, Groupon, LivingSocial, RueLaLa
OpenTable - look for openings and make reservations
Menu Pages - look up menus
How to Cook Everything, Epicurious, Allrecipes - recipes!
GasBuddy - running low on gas, where's the nearest/cheapest one?
IMDB - hey, who's that actor? What else whas he in? It was... shoot, it was a few years ago, with Kevin Bacon...
Shazam, Soundhound - What's that song that's playing?
Bookworm, Words w/ Friends, Drop7, Jumbline - various games
Frotz, Rogue - old school games!
Plants vs Zombies, Angry Birds, Cut the Rope - popular games that got boring after a month
BBC news, CBS Sunday, NPR News, PBS
SteepAndCheap, DealNews - watch deals
Photosynth - live photo stitcher from Microsoft
Dragon Dictation - cool dictation app
AllTrails - interesting trail locator, haven't really used it
TNF Trailhead - ditto
Avenza PDF Map - download free USGS maps in PDF and import into Avenza. Pretty cool, but the maps take up a *LOT* of space.