unlocking(1st gen) Iphone for a backup to a 3g

[Stangster]

I've jailbroken my (1st gen)iphone many times since I owned it, Thanks to the Dev Team but never needed to unlock,with At&t. I plan on upgrading to the 3g iphone but would like to unlock the (1st. gen) and keep it as a backup. (useing one card for both) I'm staying with at&t. what I'm asking is, should I use the card from the new 3g iphone when I get it,to unlock the (1st.gen), or unlock the (1st. gen) now then go get the 3g.
thanks in advance.

[rx7turbo287]

i don't really understand your question, your card will work with both 3g and 2g. don't really matter. u would only unlock to go to different carrier. and btw its your phone, do whatever u want with it, so don't need to post that (I staying with att) i with tmobile and love it and much cheaper. on 2g u can software unlock which is the best way, less problem, using a sim adapter really only if there's no unlock software for it, which 3g not yet. but will be very soon. i personally i feel iphone 2g is more solid then iphone 3g. and much stable but 3g are better looking, and for gps part, i don't really feel much better increase, i don't know the 3g network have anything do with it, but i 'm edge and i don't see a hugh different on locating places faster, may be more accurate, who knows. but if u want to unlock your 2g. there's a huge slection of how. but i can also give u instruction to, also for the 2.2 update. as for 3g update to 2.2, don't do it, it'll be impossible for unlock in the future.

[Stangster]

Thanks for tring to help RX7turbo. what I want is to be able to hot swap my sim card between my 1st gen. and a 3g iphone,when I get it.seems the phone is also sim locked.
tried swaping sim cards with my wifes aa&t card thinking both cards being at&t it would work but my 1st gen. iphone won't except it,shows the connect to itunes image when inserted.so does this mean I need to setup a new contract.I'm thinking it has to be unlocked or sim unlock. Can this be done and How would I go about doing this?