(((No matter how quease-inspiring this is, it's worth it just to have the neologism "gut bot." It's like some kinda awesome nanotech blue-collar work: "yeah, I herd gut bots.")))
(((Let's hope the Storm Worm boys don't get their hands on a "gut bot net," as illicit command over our planetary entrails could really make it hit the fan.)))
http://www.technologyreview.com/Biotech/21153/?nlid=1244&a=f
Link: Technology Review: Controlling a Gut Bot's Position .
(((If it isn't freaky enough that it sticks in your gut, it's based on insect biomimicry.)))
"Sitti and his lab group looked to beetles, which secrete oil-like liquids along their foot hairs in order to stick securely to surfaces. They coated their robot's feet with a similarly viscous liquid to "help get more adhesion by giving them a surface-tension component," says Sitti."
(((Of course there's video.)))