Per the Community API documentation(http://blizzard.github.com/api-wow-docs/) I emailed the api-support@blizzard.com regarding application registration. It's been roughly 2 weeks with no response. Friday I contacted Blizzard's general support and they recommended I post here. In fact they said that email address is now rarely monitored.
How can I register my application? Thanks!
I do check requests to that address, but less often than I would like to. Unfortunately we've all just been very busy getting getting the website and APIs for Diablo 3 ready that working on the Wow API and adding new applications isn't getting much time in the schedule.
I've been reviewing and adding new applications about once a month, so it may be a week or two before I can find the time to do another batch.

