Ethan Kaplan, Warner Bros.'s 29-year-old vice president of technology, uses Twitter like his cohorts. Well, almost like his cohorts. He slipped up using Twitter's direct-message feature, and broadcast to the Internet a request to talk to someone in business development at Zappos.com. Despite advertising "Shoes,…

Jason Calacanis and Dave Winer weren't the only ones lowering the Gnomedex geekathon's quest for spiritual uplift. Robert Scoble, the outspoken videoblogger, took issue with Warner Music digital guru Ethan Kaplan's critique of the conference. Not, mind you, for anything Kaplan said, but for his failure to address…