In the far-out, sci-fi future of 2009, robots are doing some pretty amazing things, like capturing prowlers, assembling communications networks, and playing Rock / Paper / Scissors. Now, with a little help from RoBe:Do and Twitter, robotics has achieved what may be its crowning achievement: couch-side popcorn delivery. Coppa is a $1,649 software-ready robot (you supply the machine's netbook brain) that arrives with native