Basically what clipp is trying to do is replace papers and notebooks, with iPad screens.
Well, in a country like America, that indeed is a giant step to put education forward. But, here in India we students and teachers alike, cannot afford an iPad. So if the app was basically a cloud solution with a HTML5/jAVASCRIPT sort of interface, it would be easy to port to different platforms and can be used in much affordable tablets.
Anyway being a college geek, +1 for clipp.
You may also find APPYnotebook (www.appynotebook.com) of interest. It is an open source LMS with it's own integrated App platform that allows teachers and students to build their own educational environment.