Moved to the 9100 section.
There is an OS in beta right now. It was announced on BBLeaks a few days ago:
Leaked: BlackBerry Pearl 3G 9100 & 9105 OS 6.0.0.344 | BlackBerry Leaks
But a word of caution, if you are happy with how your BB works now and it is not broken, then I wouldn't try to fix it, especially with a Beta software package that may or may not be that great.