Waiting patiently for a bug hunt to be announced before you get involved as a WordPress development contributor? Pshaw! Don’t be shy!
2.8 currently has about 500 active tickets that need to be resolved. The core devs are largely working on the bigger feature additions, such as the embedded theme browser/installer, the new widgets management, improving performance, etc. so a lot of tickets that are of lesser priority are still just sitting there. Aren’t they calling to you, just like puppies at the pound? “Adopt me! Please!”