Picked up an OEM charging pod in T-Mobile branded packaging at the store when I got my 9700 today. Was $30, so for the $5 over crackberry's price I was able to bring it home today.
Works as expected, the light on the front is now a very dim one right behind where the BB is placed. When I say on the front I mean the old 8320 series had it on the front and I think the 8900 did away with the LED completely.
Anyway, if you're at a T-Mo store, look for the white box by the cases for the 9700.