Google says in official blog:
“More than 150,000 ideas (approximately 10^5.2) in more than 25 languages are submitted and it took more than 3,000 Googlers in offices around the world to review the submissions.”
Some of those ideas requires a big amount of investment, some are overlapped, others are very specific technology or implementation proposals. So, Google has pooled similar ideas into a set of 16 top idea themes and each theme has different possible implementations, and Google intend to consider all reasonable possibilities.
Further Google says that as the idea themes are selected now so:
“Over the next two weeks we’ll be gathering your votes to help inform an advisory board that will then choose up to five winning ideas that will receive funding. After that, we’ll present the finalists and ask for proposals from individuals or organizations that can implement these ideas.”
The voting time period is 24th September to October 8, 2009.
Watch Project 10^100 idea themes video