TouchCast is an iPad app that I downloaded recently and have been exploring a bit over the last couple of weeks. It's not often an app come along which really shakes up and existing genre like video, but I think TouchCast does and in a way that can be very beneficial for learners.
Seems interesting. Should take a look.
This looks like a fantastic tool along the lines of Zaption, where vieoes can have other content overlaid. Looking forward to having a play :)
Need to try this.