Alternate Operating System for 8330m?

I can't seem to find any information on what I'm looking for on this site nor the internet at large.

I have no interest in using this old 8330m as a phone. I'm only interested in using it for playing music, possibly some small games while on the road. Isn't there any alternate software to load onto these things besides official/hybrid BB OS's? Similar to the way I run Cyanogenmod on my Android?

I figured I'd at least find some sort of Linux distro for a BlackBerry, but I can't even find that.

As a side-question: Any idea what the fastest microSD cards these take are? (Class rating)

No. There's no "alternate OS".

Nope. Bootloader is locked and no one has found a way to unlock it over the years.