First time

[Notatechie]

Hi, just purchased my first Android 4G with Tmobile. I travel all over the world and plan to use my phone as a computer as well as phone. However I will not use Tmobile internationally, preferring to put in local sim cards. I wonder how much hassle this is going to cause me?

 

[El Presidente]

Welcome to the forums

Where are you currently? Did you buy the phone unbranded? Which phone is it?

 

[lunatic59]

Welcome to Android Forums!

It shouldn't be a hassle at all as long as the phone is unlocked to accept other sims and that the phone supports the 3G frequency bands. You might have some data issues with 3G but other than that, you should be okay.