I spend most of my time using my Windows Mobile and Nokia devices, depending on my needs at the time. However, I keep getting drawn back to using my iPhone due to the incredible quality, functionality, and low prices of the games. The latest game from Electronic Arts that appeals to me is Rock Band (iTunes link). This game is priced at $9.99 and has four different ways to play, including multiplayer via a Bluetooth connection.
20 songs are included when you purchase the application, but you can also purchase additional songs from within the game's music store (looks like 99 cents for 2 song packs). Bluetooth multi-player is not supported on the first gen iPhone or iPod touch and rock band requires OS version 3.0 or higher. Anyone try out Rock Band on their iPhone yet?