[stingray]

I have an old iPhone (1st gen 8gb) that I do not use. The screen is slightly cracked, but does not interfere with normal operations. I am currently using another iPhone (also 1st gen 8gb). My question is: If I move my sim card over to the non activated iphone, and activated it via itunes, and then move my sim back to my current phone will there be any issues? I want the older one to be able to be powered on and be able to use the apps and iPod features. Does anyone see any issues with doing this? Will AT&T charge me an activation fee or anything funny by doing this?

Essentially I want to be able to have the one phone used as an iPod touch, and keep using my current one as normal.