I have bought some games on my iPhone and some are good, but most aren't. They usually are at the level of a nice proof of concept, but lack depth and have very little replay value.<p>The games that I avoid like the plague are the in-app purchase games, especially the ones that are just about buying in-game currency. These games are never good.<p>The sad thing is that the mobile platform should, in theory, be ideal for strategic games and builder games like Anno, Settlers, etc. All implementations of this genre however rely on, after a few hours of playing, increasing build-times of buildings to multiple hours, or days, but allowing you to finish the building instantly with in-game currency. Which is, of course, a crap gaming experience and I am sure the creators know this. It does seem to be a good way to make lots of money, seeing as all games do this now.