OWOW is the latest Kickstarter offering some unique new musical technology. A series of 5 different instrument types make up the OWOW set of fully class complaint controllers. While not specifically emphasized on their Kickstarter page they do have one picture showing off a OWOW connected to an iPad.
The 5 OWOWs are named: wob (D-beam), wiggle (gesture X/Y controller), drum (accelerometer air drum), pads (4 pressure sensitive pads), and scan (similar to PhonoPaper).
They all look like a lot of fun, but their diminutive size is offset by a large price! To collect the whole set you'll need to shell out $661, or $328 if you just want the boards without cases. Despite the high price tag, this project has already reached 9% of their funding goal in under a day.