Don't know if you've all seen this already, but I'm totally sold (real apple-addict). So want to own an iphone!!! Crossing my fingers that my sister could get one for me when it comes out next week. She does work within walking distance to the Apple store on Fifth Avenue... Hopefully she could stand queueing for her little sister...
http://www.apple.com/iphone/usingiph...our_large.html
And yes, I can change the SIM card on my blackberry whenever I'm home in the states or here in Frankfurt. I also get roaming so sometimes I don't even bother. More expensive, of course, but... Hopefully it's not all monopolized bu AT&T (which now owns Cingular, by the way).