HENRIKTEKNIK  Instead of this, I'd recommend Zooom, http://www.macupdate.com/info.php/id/23203  
(Version 1.0)

CLAKES  please please please developers, keep the job running as this is one of my favorite utilities!!  
(Version 1.0)

HENRIKTEKNIK  Nice idea, but very unstable.

Repetedly crashed for me (OSX 10.4.7, G5 dual 2.5 Ghz, 1.5 GB RAM, ATI Radeon Pro XT 256 MB), when I had changed the window color in the 'View' tab under Preferences.  
(Version 1.0)

IGABE  Great tool. Just works well.

Sole complaint is a rather important and frustrating one:

The icon in the menubar is plain bad looking :) If the author could change it, or give the option to chance it, I would personally be incredibly greatful.  
(Version 1.0)

LOU KASH  Doesn't run on 10.3.9.

Link (dyld) error:

dyld: /Applications/*Hintergrund/GeekBind.app/Contents/MacOS/GeekBind NSLookupSymbolInImage() dynamic library: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox does not define symbol: __SimulateMenuClosed  
(Version 1.0)

LOU KASH  Ah! The trick was to go to the pref pane and push the "Apply" button once again, now it works again on 10.3.8.  
(Version 0.3)

LOU KASH  Moving windows seems to be broken under OS 10.3.8.   
(Version 0.3)

STEPHAN  Ok, after a little experimenting I found out what some of the functions do. Quite interesting, but improvable (imho). There should be a hotkey (or is there?) to set active windows to a certain alpha in one step, so that you don't need to press the assigned hotkey over and over again until you reach the alpha you want.  
(Version 0.3)

ANONYMOUS  Useless, as long as there isn't at least an englisch documentation for it. Not everyone on earth speaks french :-(  
(Version 0.3)

AVETENEBRAE  Wonderful,

I really love the ability to increase or decrease the transparencies of every windows !!

And i love the simple way to hide temporarily a window (to read a message on a background window messenger, to translate a text, referring to an article, a function syntax.... anyway, i'm addicted now..)

Very useful and very eyes candy.

Bad : Resize is not very fluid, and the functions are not very documented..  
(Version 0.3)

ANONYMOUS  It would really really help if there was some documentation for this. :)

Somewhere.

Anywhere.

Even in the CVS repository.  
(Version 0.2)