Is this the best phone for going international?

[JQuill]

HTC Shift
http://www.htc.com/www/product/shift/specification.html
(Would be running Linux on it with international sim not Vista Business)

HTC HD 2
http://www.htc.com/www/product/hd2/specification.html

Sprint TP2
http://www.htc.com/us/product/touchp.../overview.html


Okay so....

Right now I have the Sprint Diamond, and the European Hero (Unlocked GSM). I use the Hero whenever I'm in London, and I use the Diamond whenever I'm in the states.


Now let it be said that whatever carrier or plan I am on makes no difference to me. I am simply asking about which device is best and I am aware that I'd have to go with different carriers to get diff. devices.

With the Sprint TP2 having a sim card slot, if that ***** can ever get unlocked I would probably just use the Sprint TP2 for everything and keep my international sim in that device 24/7 and just turn GSM mode on whenever I'm in London.

OR

I could get an HTC Shift, and put Linux on it, using it internationally and in the states with AT&T. (or figure out a way to steal a TP2 sprint sim card and make other phones work on sprint...please let somebody here be smart enough to do that)

OR

I could wait for the HD2 to come out and use that internationally and in the states (it will be compatible with AT&T's 3g network so high speed data will work in the states...similar to the unlocked GSM Hero I have now, the antenna can read AT&T's 3g network(


So...which would you go with. Sprint TP2, HTC Shift, or wait for the HTC HD2?