This application is pretty similar to HideBar (http://ppareit.github.com/HideBar/), an application that has been in development for over a year. It contains an intuitive user interface to hide/show the systembar.
I find the development of customizing tools like GMD very good. But as a developer you should not use the same name. This only leads to confusion for existing users.
Thanks buddy, works perfectly now! That's what i was looking for, happy to pay 1,50$ for it.
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