Just spotted this interview with Canonical founder Mark Shuttleworth, who spoke with Lifehacker.com about Ubuntu’s productivity benefits. Shuttleworth notes that he’s already running Gutsy Gibbon, the next version of Ubuntu slated to be released in October. He also praises Thunderbird, the email system. I’m still on an email client who’s name I’d rather not mention. Might be time to make the move to Thunderbird.