Does arn plan on upgrading the forum to vBulletin 3.5.2, there seems to be a lot of nice new features, and Skype integration would be kinda nice here.
vBulletin 3.5.2 is primarily a standard bug-fix/maintenance release for the vBulletin 3.5 series. However, this release includes fixes for two potential XSS (cross site scripting) security issues. If you do not upgrade, it is very important to at least patch your board. Please see the end of this post for patch instructions.