I'm trying to tether with my iPhone 3GS 3.1.2, and I want to know whether this process will work. 1.) Download and install Blackra1n on my Mac. 2.) Hit make it rain (thus installing the Blackra1n installer on the phone). 3.) Install sn0w from Blackra1n. 4.) Remove Blackra1n from the phone. 5.) install this profile from: http://m.peacefulinsanity.com/Tether.mobileconfig I'm fairly certain this will work (my friend has done it). My question is, will a iTunes restore undo it? Thanks in Advance.