I just found an Adobe Air application called Dwarf. It is created by Jonnie Hallman who is a Developer at Adobe Systems. Dwarf allows you to add multiple guides and rulers directly to your desktop. This means you do not have to make a screenshot to open up in Photoshop every time you want to measure for example the contents on a website. In my work this is really helpful because there is a lot of pixel pushing going on. Another thing that makes this a great tool is that almost every action can be triggered by keyboard shortcuts. I LIKE!

There are, however, some things I miss in Dwarf that really could make this a top notch tool.

- Implementation of Rule of thirds (http://en.wikipedia.org/wiki/Rule_of_thirds)
- Implementation of The Golden Ratio (http://en.wikipedia.org/wiki/Golden_ratio)

Hope this will be implemented in a future version.

Download Dwarf
http://github.com/destroytoday/Dwarf/downloads

In the project I am currently working on I got textfields that scrolled when I used the mouse wheel. To avoid this you simple disable the mouse for the textfield.

textfield.mouseEnabled = false;