Are there any games that can be played with others by linking together with a Wi-Fi "ad hoc" network?

ive seen a few games that support WiFi and bluetooth, but to use WiFi you needed an access point. Bluetooth on the other hand two systems could link directly.

Check out Warfare Incorporated

yeah definatly, buy that one

Quartz 2 is a good puzzle game, and theres another game called, something with Bombs that is really good too (I dont have my PPC on me so i cant check sorry)

I was thinking Atomic Cannon and Snails might let you mutliplay via Bluetooth, but I don't recall offhand.

As far as I know, Atomic Cannon only support hotseat multiplayer gaming - where you can only play on one device and you pass it back and forth.

Snails does allow for multiplayer via local network or internet. You can also play on one device.

Is there a particular type of game you are looking for?

It's that time of year again. I need a new holiday avatar... Is there anyone up to the challenge?