I use my IPOD touch for music mainly and checking mail while I am out, but I have City Transit, and that Level app like Noitall. I have used it on occasion. I downloaded games because I take it with me and I have my nephews alot. If I need to, I break out the Touch for them to play with. The graphics are amazing.
OK.... I play them on occasion, like in an airport.
Nanosaurus 2
Krash Kart
Enigmo (Brilliant Puzzle game with drops of water)
Parking Lot ( Another Brilliant Puzzle Game)
Worder (Free App)
Astrotilt (good for little kids)
Bejeweled
Itunes has lists of apps and user ratings. It also warns you of any glitches the app might have. Then you can decide whether you want to take the chance if you think you will use it frequently enough. Many of them are free and if they are not, the prices have come down significantly. Nanosaurus and Krash Kart were around $2.99 and have the graphics of a Playstation Game. A Bargain in my book.
Doesn't Google Earth use a lot of memory?
