all i can tell is the wireless LAN which can be purchase separately for $49
any others hardware difference besides that? how about camera, speakers, etc?
if the only difference is the LAN, practically I can use drivers from TR3A for TR2A, can’t I ? also, if i want to clean install my OS, I can use the steps outline here, http://www.siliconpopculture.com/sonytr/viewtopic.php?t=807
thanks.