It's my wife's iPod, so most are hers (bolded ones are the ones I use or have used extensively):
Facebook
Groceries
BofA (Bank of America)
TWC (The Weather Channel)
OpenTable (Restaurants)
Flixster (Movies)
Pandora (Radio)
Google Earth
Fandango (Movies)
Pride and Prejudice
Lose It!
Sudoku (Game)
Yahtzee Adventures (Game)
ParkingLot (Game)
HoldEm (Game)
Fairies Fly (Game)
PAC-MAN Lite (Game)
iXpenseIt (Expenses)
PS (Photos)
iPaint (Drawing)
Meditate Now
Christmas (Lists)
Yoga LITE
iContraction (Childbirth)
Simple Paint (Drawing)
Baby Log
Fairies Lite