PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
LayerX - An intuitive app to display transparent images on screen.
PiPer - A DIY Minecraft computer to build gadgets
PixelPerfect - Allows developers to put a semi-transparent image overlay over the top of the developed HTML and...
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
Osiva - Osiva" is an acronym that stands for "Overly Simple Image Viewing