Got an iPod Touch 4G. I had a 3G Touch as well but that is going to the girlfriend. I am really
liking this retina display. The front and rear cameras are ok (could have definitely used a flash). The games run smoother with the upgraded chip (not tremendously, but noticeably in some instances).
Best thing about iOS4.3.3 is the untethered jailbreak as well. After using SBSettings, I can't go without it heh.