We found via- Crackberry a good OS leak and this time it’s the Blackberry Bold and the Curve getting some love in the form of OS 5.0.0.130.
The builds have no RIM internal applications installed so no worries there, but don’t have the 5.0 version of the Blackberry Messenger built-in and some of the RIM apps do not want to work. This is an unofficial release, so if you choose to install you do so at your own risk and only if you feel comfortable in upgrading and downgrading your device software.
If you are not comfortable with installing and uninstalling on your Blackberry, it may be best for you to wait for community feedback on a build, or wait for the next official release. We found via-megaupload the information and instructions to do this if you feel brave!