Trac is the place to follow along with the development of WordPress for BlackBerry. You can see recent changes in the Timeline section of this site or track the changers using the RSS feed.

Bugs reports are also kept on Trac. Click New Ticket to report a bug. First Login using your WordPress.org username and password. If you don't already have one, sign up at  the forums.

You can also read the guidelines and the best practices for writing effective bugs.

You can browse the source here, but you probably want to svn co  http://blackberry.svn.wordpress.org/trunk/