Google asked the question, and found out:

Google received over 1,100 submissions for the collaborative effort.

It reminds me a little bit of Ze Frank’s (what ever happened to him BTW?) Video for Ray project earlier this year. The exercise just goes to prove that tapping into passionate users can deliver; over 1,000 people world wide took time out to video and upload their love of Gmail, with no incentive to do so other than perhaps a 2 second chance of fame. Cheap labor perhaps, but it’s a resource that can and is being tapped.