Having just bought an ipad 2, i've been on the lookout for cheap ipad games.. Mostly cheap games.. Don't be too harsh hehe..
Aralon: Sword & Shadow HD - $5.99 (Universal App)
http://itunes.apple.com/au/app/aralon-sword-and-shadow-hd/id…
Death Rally: $1.19
http://itunes.apple.com/au/app/death-rally/id422020153?mt=8
Lets Golf HD: $1.19
http://itunes.apple.com/au/app/lets-golf-hd/id364142611?mt=8
Lets Golf 2 HD: $1.19
http://itunes.apple.com/au/app/lets-golf-2-hd/id371110809?mt…
Splinter Cell Conviction: $1.19
http://itunes.apple.com/au/app/splinter-cell-conviction-hd/i…
Eternal Legacy HD: $1.19
http://itunes.apple.com/au/app/eternal-legacy-hd/id402028208…
James Camerons Avatar: $1.19
http://itunes.apple.com/au/app/james-camerons-avatar-for/id3…
Tilt to Live HD: Free
http://itunes.apple.com/au/app/tilt-to-live-hd/id391837930?m…
Mos Speedrun: $1.19 (Universal)
http://itunes.apple.com/au/app/mos-speedrun/id419215811?mt=8
City of Secrets HD: $1.19
http://itunes.apple.com/au/app/city-of-secrets-hd/id42352399…
Real Football 2011 HD: $1.19
http://itunes.apple.com/au/app/real-football-2011-hd/id39618…
The Settlers HD: $1.19
http://itunes.apple.com/au/app/the-settlers-hd/id371112669?m…
Edit: I think tilt to live HD might be a pricing mistake… get it while its hot :)
Edit 2: Added City of Secrets..
Edit 3: Added 2 more games..
Sorry for threadcrapping
Here are some free apps
Texas Poker
Touch Zombie
UFC Undisputed Lite
Find some more here