The info. was that the 5.0 OS was too bloated to run on the 83XX series which has 32MB less memory than the 8330 to start with.
I tend to believe this, since even after shrinking OS 5.0, I only had twenty-something MBs of file free memory. With OS 4.5, I run above 45MB of file free memory.
Nope, probably won't happen. Likely we may get the new browser to go with BBM 5, but the core apps are just getting too big for 64 MB of memory. As much as I am a latest and greatest type of guy, I'd say that I can live without OS 5 until my next BB.