are there any games that use in-game chat....

[gkargreen]

and is there a headphone set that has a mike on it, like there was for the PSP 2000?

 

[king9x]

http://www.youtube.com/watch?feature=player_embedded&v=9vPVNN1pF-s#!

Any bluetooth headset would work as well.

 

[king9x]

http://www.youtube.com/watch?v=9vPVNN1pF-s&hd=1

Any bluetooth headset will work.