When you all start getting your iphones could we do a little collaboration to see if this is possible? I REALLY want to put the monthly data plan sim from an ipad into an iphone and use it because I'm on skype and wifi all the time, with texting through google voice. The only reason i need the data is to make skype calls away from the house or work.

I assume you would need access to:
ipad with monthly data: 2gb or unl
iphone 4 jailbroken & unlocked (microsim)

I would attempt this but don't have the cash right now.
Thanks and good luck!