According to this screenshot, T-Mobile retail locations will be receiving SD cards pre-loaded with the files to update the
MyTouch 4G

T-Mobile G2

to Gingerbread, as well as updating the
MyTouch 3G Slide

to the latest Froyo version. Coming August 1, techs in the stores will be able to assist customers who have difficulty understanding or completing the OTA update process, which is a great way to help the less tech-inclined folks that still love the freedom and customization that Android offers.

We've already seen that the
Gingerbread update for the MyTouch 4G

is in the works, and Gingerbread for the G2 has been
leaked out

as well as accidentally
shipped on some warranty devices

, but it looks like things are a go for an OTA roll out, and not a moment too soon.