i agree, great thread! its hard to filter through all the apps to find the good ones. i'm surprised apple doesn't seem to showcase them more. i really want to support the quality apps so there's incentive to keep'em coming. here's my favorites and must haves (i have a lot but they're the best at what they're for IMHO):
free:
epocrates, DxSaurus 1$, eponyms (all must haves for med students)
yelp
aim
google (search, with voice)
iheart radio (limited stations but has a few key ones that aren't in wunder)
Stitcher (free streaming podcasts, well organized, updates have made it great)
wikipanion
dictionary (from dictionary.com, impressive, even has audio pronunciations!)
evernote (great for stockpiling any info you come across, syncs with online server)
facebook
pandora (of course)
remote
myLite (great flashlight)
easy relax, white noise (not sure if still free, good relaxing sounds)
iTV (very well put together tv guide with video clips..)
Air Hockey
Beer Pong
Knots (fun little game, like twister but with your fingers)
iPint (always fun to play with beer)
Shazam
PanoLab (easily make panoramas with camera, its great!)
WSJ (wall street journal, just good information, smooth interface)
Paid:
Labyrinth
10balls7cups (perfect arcade skeeball 1$ i think)
wurdle (great wordfinder game, always come back to it)
SmackTalk (simple but perfect, a guini pig repeats what you say, its actually really really fun to play with, kids especially like it)
NanoFighter (great little space shooter, cheap!)
Brushes (simple but nearly perfect drawing app, can also draw on your pics)
WunderRadio (well polished, hundreds or thousands? of radio stations world wide)
Marquee (streams messages across the screen)
iHandy Carpenter (the BEST level out there, used it to build some shelves, looks amazing)
iSteam (very well done steamy window effect if your into that sort of thing)
wobble (kinda silly/immature but tons of fun, you can make any part of the image wobble (including parts of the female anatomy) with adjustable sized circles)
TapTapDance (amazing if you like electronic dance music, great music, great visualizations!)
Zen Bound (not "fun" but very soothing and looks amazing)
Classics (really nice book reader, just has free books on there, the classics, if i actually read books anymore this would be the first book app i used)