I tried googling but got several different answers.
What is the equivalent for the Droid through Tmobile?

They might not have one. Droid uses the Android OS, so try googling Android OS for T-Mobile.

I will do a search and see what I find.

[myTouch™ 4G] [T-Mobile G2™] [Samsung Galaxy Tab™]
[T-Mobile Comet™ ] [LG Optimus T™ with Google™]

I believe these are all the Android OS phones offered through T-Mobile

Thank you hon :) I prefer tmobile and would love not to have to switch but I want a droid hehe. Ill settle for one LIKE a droid. What about the gravity T is that sort of the same? It loosk the same.

It's not an Android phone. I believe it's a Windows OS. The Motorola DEFY is most like a Droid X because they're both Android Phones made by Motorola!

T-mobile + Android = HTC Desire HD ;)