Tablets may be attracting all of the attention right now, but it's clear that Intel's keeping a broad focus on mobile computing. During today's PC Client keynote at Computex, the company took a moment to talk up Canoe Lake, an experimental platform that'll enable 720p video playback on a machine that's barely thicker than a couple of envelopes stacked together. We got a chance to peek the prototype on hand in Taipei, and we were told that Intel designed the device you're peering at above completely in-house as a way to sell PC makers on the idea. They also affirmed that a GMA 3150 GPU was inside, and that the platform was capable