Pennywise - Cross-platform application to open any website or media in a floating window
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
Afloat - Create beautiful invoices in 3 clicks, without mistakes
PiPer - A DIY Minecraft computer to build gadgets
ZoomIt - Presentation utility for zooming and drawing on the screen.
Picture In Picture - Picture In Picture comes as an extension tool that enables users to watch videos in a floating window.