I live in Edmonton, Alberta, Canada and was wondering which Canadian service provider offers T-mobile phones. I'm mostly looking for the psp or regular gameboy shaped ones. And how much they are around, just the cellphone.

Both of these are game phones:
N gage QD
N gage

I don't know what carriers in Canada carry the same phones as T-mobile, but I would look at

BellMobility
Fido
Rogers
Telus

Those are Canada's major carriers. Look at their phone selection on their websites, and see if ya like any. Did I answer your question?

You mean like a Sidekick?

Sharp Hiptop 3 / Sidekick 3 Specs & Features (Phone Scoop)

Actually I meant like the MDA.

None of the Canadian providers sell the MDA, but you can get it unlocked off of Ebay, and then use it with Fido or Rogers, depending which is cheaper and has better coverage.

MDA can be unlocked easily with lokiwiz 0.3 or later ver
also, if you don't want T-Mobile branding, you can press reset when you see the today screen after hard reset to avoid brand installation