AxelCloris,
oooh, now I remember that feature. Yeah, it actually weirded me out, but I didn't spend enough time to get used to it. I think it's entirely reasonable to have mic monitoring as an option (you sure there isn't one inside the Creative drivers? at least when run on a PC?), though I also noticed that on my friend's older TB sometimes I could hear HIS game audio through chat (tho I assumed it was because the mic was too sensitive, his was waaaay louder than everyone else on my friend's list, except other TB players, I wish mine was louder but not as loud as his).
Two more hours...