Yes it does I am using it with mine and have tested it with the Debian and the NOOBS version. Im actually looking to see if I can use two at the same time. One with my Windows 7 and my pi without crosstalk.
If this keyboard is used to control a PC viewing Netflix or other internet source as we do, the touchpad is much more manageable than a keyboard and separate mouse. This is especially true when using the keyboard on one's lap.
The one I received on 3/1/2013 has different buttons top/left than pictured so I'm assuming it's the new. Left to right it has: Mouse, Musical Note, Home, Lock-PC, Power (on/off) - PC. I have not tried any of them yet.
Update: The one I received is the K400R as opposed to the K400. On the Logitech website there's a description/pictures showing the two models that is pretty informative.
I hope including the link does not violate guidelines here. I read through them and it does not seem to.
Yes, I purchased this for use with a Samsung UN32EH5300 TV. This keyboard was a true plug and play device. It was immediately recognized by the TV and works great for web navigation with the browser with in built in touchpad. One thing to note that it is not the fault of the keyboard. While the web browser uses the keyboard input, some of the Samsung Apps do not. While using the Amazon Instant Video App the keyboard input is not used and you still have to use the on screen keyboard and make hunt and peck entry with the TV remote. This appears to be a quark of the Samsung TV App, not the keyboard. For me this keyboard is a very convenient size and works very reliably. I would highly recommend this unit.