How about NesBot, the fully automated coffee serving robot? BlueBotics SA, in conjunction with Nestlé’s Nespresso SA, have developed exactly such a thing.
Combining BlueBotic’s Autonomous Navigation Technology (ANT) technology with a Nespresso machine and a Pocket PC, they have developed a system that will come to you and let you order your coffee, and will then brew it for you, right there, on the spot.
You can, of course, pre-order, using a browser and your office LAN. I’m not too sure how the staff here at The Grill would like one of these taking over their job, but I’m pretty sure that I want one of these.