My version came from Amazon. It has a sliding on/ off switch on the end, and a big red button which I think it's for pairing on the top left of the keyboard.
The box clearly states suitable for android 2.1 or higher, but I haven't been able to get it to be seen by my stock xperia active, or routed flyer running honeycomb.
I will try it with my Windows 7 laptop and let you know how I get on, but of anybody has any ideas it would be great to hear from you.
Sent from my ST17i using xda premium