Re: SPRINT TP2 with Sero over EVO (personal experience)
 

After switching back to stock sprint and disabling HTC sense, plus overclocking to 749 (on all the time) I can live with my TP2... For me every custom rom sucked in one way or another. The killer app for me is jeyo mobile companion... send txts, etc from your computer.
The evo is nice and the batteries are the same... plus I love having a flash on my phone, but the cost isn't worth it for me.

Re: SPRINT TP2 with Sero over EVO (personal experience)
 

Why not check out an Epic. Has a nice keyboard, larger much better screen, and is lighter. Battery life is not as good, but I'm averaging 8hrs with moderate-heavy use. Buy a car charger and several Wall chargers.

My "highly customized" Touch Pro2 has been collecting dust since I got this Epic. This phone is sweet! I'm still running stock, only rooted, and it blows away my Touch Pro2 experience.

Couldn't you just hang on to your TP2 and take it with you if you go overseas??