Cell phones: Need Advice: unlocked T630 & T-Mobile

Need Advice: unlocked T630 & T-Mobile

Hi all - Need some help! Thanks is advance for your time.

I am currently a Sprint PCS user and because of several issues am about to make the jump to T-Mobile. I have been with Sprint (CDMA) for 6 years, so have no expierence with GSM.

That being said, that whole concept of an "unlocked" phone is new to me. I had planned on getting a T610, but before I did I starting reading about the T630 and feel that it is an all around better phone. But, I need to go ahead and make the move and no one at T-Mobile or Sony Ericsson can give me an idea when the T630 will be available in their stores.

So, I'm leaning toward purchasing an unlocked T630 and T-Mobile service plan from Just-Talk.com. They assure me that all T-Mobile features such as voicemail, icons, and internet access via T-Zones will work flawlessly and exactly like a locked phone purchased from a store. Is this true? Are there any pit falls that I need to be aware of?

Thanks again for your help!

-Casey