I'm not an expert as a Dev team, geo hotz , ta_mobile or any other;but i credit you guys for what you did in iPhone reversing.
Now I'm writing on this blog my procedures and method of servicing and unlocking the iPhone.
Its already 6am and sleepless doing research on iPhone 3G unlocking with any possible way;
Hardware method - thanks to my friend ta_mobile now i tried pulling out the X-gold chip.
Software method - modifying custom .ipsw, observation between iTunes connection to iPhone + sending data to server or alike albert.apple.com lol's hoping to find the hack here.