The Android OS I doubt is possible, but I'd be interested in finding out. The QPST diagnostics you might be able to run. Try looking here for a solution:
Well it took me to some stuff about cricket. I searched a lot through that but only came up with some stuff about an IP and couldn't understand a lot of it.
But according to what I found some folks actually got the GPS to work properly. Its just hard to understand if you aren't a phone genius (like myself not being one). The directions to connect to QPST are the exact same as for windows, which I know they aren't. So I am still trying to get this thing to connect to QPST.
When you were looking to change your OS to a non-BlackBerry, and play with QPST, I presumed you had a strong working knowledge of cellphones. Why do you want to make drastic changes to your device?
Posted from my CrackBerry at wapforums.crackberry.com