I was considering to buy Expoze, and I am happy that I did it!

It is an usefull webapp where you can easily upload an image or let it make a screenshot in Google Chrome. I'm waiting for the app to let it work directly in Photoshop :).
When making a heatmap you will see exactly what grabs the attention and what not.

For me as a webdesigner/grpahic designer it is very helpfull webapp.