I'm thinking about purchasing an iphone, but i'm not sure whether to get the current iphone thats out now or wait for the anticipated 3G iphone. Anyone have an idea or know how much they pay a month for their current iphone?

I also heard that the 3g iphone coming out next month will be more expensive in terms of monthly fees. I'm not sure if this is true though.

AT&T (US)
http://www.wireless.att.com/cell-phone-service/specials/iPhone.jsp?wtSlotClick=1-0013IS-0-1&WT.svl=calltoaction

O2 (UK)
http://o2.co.uk/iphone/paymonthly