As of right now (the morning of December 2, 2010), we have:
- 21 teams that are registered for and actively pursuing the Google Lunar X PRIZE
- 6 teams that were formerly registered but either are no longer competing or have merged into other registered teams
- 6 active "Letter of Intent to Compete" signatories
- Countless other potential teams who have expressed an interest in registering prior to the December 31, 2010 deadline.
For reference, the median estimate of competing teams put forth by our advisory committee (some of the most amazing people out there) was about six. My personal estimate was between ten and fifteen--and I'm an optimist. I'm very happy to have been wrong.