The last time we saw RHex, he/she/it wasn't quite as polished and coordinated as this latest video shows. A lot can and did happen in three months.
Someday, military attack drones will not only wage battle against enemies sans pilot, but will fall into formation with other drones and attack en masse. This quadrotor technology from UPenn's GRASP lab is a very big step in that direction.
Voila! UPenn's super-sophisticated uber-bike. Five kids. Substantial funding and sponsorship dollars. Free reign to eliminate clunks gears and cables. It's called Alpha.
The last we checked in with U Penn's frighteningly maneuverable little quadrotor, we noted that it could probably zip through your window and kill you in your sleep. Well, now it can fly through windows while they're moving. Guhhh.