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Did you read the details tab?

It specifically says:

Microsoft Windows 98/ME/2000/XP/Vista/Windows 7, Linux, PS3

You didn't mention what you wanted it to be compatible with, so it's all a guess from here.
 
Just have to say that's got to be the worst most awkward, ergonomically designed HTPC controller I've ever seen. Designed by Homer Simpson?
 
Looks like the Bastard Child of a PlayStation Controller and a crappy "feature" phone (with full keyboard like my old LG Voyager).
 
Here is a link to Cideko that might help you.

http://www.cideko.com/pro_con.php?id=15

It does give a little more info that Newegg.

"Supported system :

MS Windows 98/ME/2000/XP/Vista/Windows 7

*Self Customizable buttons are only for Microsoft Windows system and may not work normally in Mac OS / Linux system."
 
The Logitech Di Novo Mini is compatible with OSX and Windows 7. You can even use the built in Bluetooth instead of the dongle. You will not get special functionality that comes with the Logitech Windows driver in OSX, but you will get keyboard and mouse / pointer capability. YMMV using the Di Novo Mini with Xbox 360, but its 100% compatible with PS3.
 
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