If you're interested in more FPS's on the iPod touch, look at this:
http://blogs.battlefield.ea.com/battlefield_bad_company/archive/2010/12/16/get-bad-company-2-on-your-iphone.aspx
http://blogs.battlefield.ea.com/battlefield_bad_company/archive/2010/12/16/get-bad-company-2-on-your-iphone.aspx