Helium - Helium lets you accept payments by credit card for anything you want to sell online.
Epic Pen - A windows tool for drawing over your desktop and applications
PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
gInk - An on-screen on-screen annotation software for Windows.
PiPer - A DIY Minecraft computer to build gadgets
ZoomIt - Presentation utility for zooming and drawing on the screen.