Can the Motorola Milestone work on T-Mobile's 3G network?

I want to get the Motorola Milestone but, I want to know if it can work on T-Mobile's 3G network or at least EDGE.

If you have a network free phone means,It will run on T-Mobile's 3G network.
Locked means,you will need to unlock it.For unlocking you can approach your service provider or else try to buy an unlocking service from any one of the online unlocking service provider like TheUnlockSpot.com