Good question. We do have some gsm based thread here but this site is primarily cdma users, ie Sprint, Verizon, and some Canucks. You might be better served as a gsm user to go to xda developers.
just one word here about the experia
(because of my work in cell phone retail i was able to work with one, and i got to tell y'all: it really is HUGE (not actually huge of course) but the whole concept of 7 screen's is just awesome!