@iSwiss: You already have GTA:CW, I see. Battle of Wesnoth, Space Miner, and Doodle Army are some others that would be good. All four of these games are quite different so you'll definitely have quality and quantity.
Phoenix Wright, Carnivores, Ravensword, Quickhook, Sword of Fargoal, Prisoner84, Civilization Revolution, Broken Sword, Monkey Island, Hero of Sparta.
gottem all already Do you know others: - Action-adventure - open world - platformer(Soosiz,Rolando1+2,Frogatto, got nearly all the well-known)
Of LostLegend's suggestions, I can say Prisoner 84 would be a good pick-up that is different from the other 4 games I suggested.
You don't have Space Miner yet? It's my favorite iPod game of all time! If you like Asteroids-style shooting, RPG-style upgrades, a huge world, and hilarious dialogue, buy it now! There's one problem with it, though: It kills your battery. It's not quite as bad as some Gameloft games, but you should definitely be prepared.
OH MY GOSH Ok, that's much easier now. Crusade of Destiny (Open world) Puzzle Quest Slay Sliding Heroes (free) Chaos Rings 100 Rogues Rogue Touch Nethack iNethack Slash'EM Necromancer Rising Plunderland Zenonia 2 Babylonian Twins Samurai - Way of the blade Super Ko Boxing 2 Highborn Mirror Maze Lux Touch Daredevil Dave Word-Fu ++ The Quest (All, try the lite) Undercroft (when back up) Hehe ^.^"
Thank you unfortunately I really hate strategy-tactical games, like Lux touch and all that Bullshit. Complex RPG's too are not interesting for me. Might pick up none of them:-(