Hey - I have a week 39 iPhone. I was able to jailbreak and use wifi, ipod, etc., but I always kept getting a NO SIM error. I could never do the *#307# hack -- I'd always get a NO SIM error then too. I thought, stupid of me, that maybe 1.1.3 would allow me to hack it a different way, but no. Now, I can't downgrade my firmware. I get an error (1) in iTunes. Any ideas? I can't virginize with iDemocracy (on my PC) or use iNdependence (Mac) because I can't connect to wifi, thus giving me an IP needed for the application to work.