what are some good apps for the iphone, i just traded my blackjack II for one the other day and want to download some cool shit

i have the following on mine (all free):

shazam
wikipanion
sportacular
sportstap
midomi
ign.com reviews
airsharing
remote
weatherbug
flashlight
stanza
now playing
labyrinth le
constitution
i.tv
google earth
trace
backgrounds
urbanspoon

i have the old 2g iphone, so i can't get much out of many apps that need a fast connection.