Thanks alot for writing this program. I love it, it's exactly what I am looking for. You should set up a paypal account and put it on your deviantart page. Then we could contribute to you.
Btw, it would be cool if you could add the ability to simulate keypresses natively. Right now I'm using a workaround with vbscript.
For those interested, you can simply create a text file and save it as test.vbs. Write in following lines in it
Set WshShell = WScript.CreateObject("WScript.Shell")
Replace enter with the keys you want. Lookup the syntax here
You might want to use this program with,
-Other Expose Programs
-Back previous shortcut for your web browser
-Next previous tab
-Global music player shortcuts
The list goes on.
Btw, those guys who like to mod their Windows to look like a Mac are surely gonna rave over this.