There would be more innovation in mobile phones and services if they were as open as personal computers and the Internet are today. A grassroots movement of Silicon Valley tinkerers are pushing such an agenda, the Homebrew Mobile Phone Club, whose name pays homage to the famous Homebrew Computer Club (where the Apple I was first introduced). I'm sure the wireless carriers will fight this tooth and nail to protect their "walled gardens," just like AOL and Prodigy did back in the day, and I hope the results will be similar.