I propose Geoff Howard as Cocoon committer. He has been involved with Cocoon for the past year, providing lots of useful discussion and bug report/fixing. He has submitted many useful patches, for example with the file upload. He gives tremendous assistance on cocoon-users, further demonstrating his commitment to Cocoon.
Becoming a committer will allow him to contribute more effectively to Cocoon. Here is my +1 --David Crossley