I've updated the document 3.0-Incompatible Community ZenPacks and the list of Community ZenPacks now lists which are 3.0 compatible to the best of my knowledge. There are still more ZenPacks to be verified for 3.0 compatibility (with a number in my queue to process) but ZenPack authors may verify them as well. To help speed the verification of which are Zenoss 3.0 compatible, I have built all the Community ZenPacks in http://zenpacks.zenoss.org's Subversion respository and put them up at http://dev.zenoss.org/zenpacks/ for download. If you can test and validate any ZenPacks, please email me your findings (or respond to this thread or start new threads in zenoss-zenpacks).
Zenoss Community Manager
Thanks to Zenoss Community Member Egor Puzanov for taking the time to verify each of his ZenPacks with Zenoss 3.0, updating quite a few of them in the process:
Thanks again Egor!