Hey everyone. I'm new here. Thanks for all the great info. So unfortunately my 32gb 3GS came with 3.1. So I'm playing the waiting game for jailbreak. Thankfully I used a tutorial to back up my current 3.1 SHSH for futures use. As of now, I'm using carrier file 5.0. I was wondering if its okay to update to the latest one through iTunes so I can send mms. I was wondering if this might adversely affect jailbreaking, tethering, or anything else I might want to do in the future here. To my knowledge I don't think it would be a harm, but I don't want to risk it. Thought I'd ask the experts first. Thanks!!