sure I can give those details...
there is no software to install, unless you want to pair multiple devices with your unifying receiver, then you have to install the unifying software.
the touchpad is very accurate but there's no multitouch scrolling, but there is a large d-pad right under the touchpad for navigating multimedia stuff that works perfectly for scrolling up and down. it's not backlit. the multimedia keys at the top do work in windows for mute etc. The only thing I wish it had was a right touchpad button. Instead you have to hit Fn and click to get access to right clicking.
I've had a few different htpc keyboards and I like this one by far the best, for range, quality of key press feel, battery life, reliability of signal getting through and also the multimedia control section with teh big d-pad, which is what I mostly use to get around xbmc with. I wish they'd price it less than $100 on amazon.
the past htpc keyboards I've used were this one:http://www.amazon.com/Visenta-Wirele.../dp/B0026T7S58
cheap plastic piece of crap.
a rii bluetooth mini kb/touchpadhttp://www.amazon.com/ProMini-Wirele...5519453&sr=1-1
this was actually pretty darn good, used it with an appletv2 for a while. but it stopped working after 3 months. also it had to be recharged weekly
and I've also used an ipod touch with hippo remote. I use a microsoft mce usb IR remote too, but it's not really a keyboard. the logitech is my favorite for htpc use because when you alt tab and open a web browser you can totally use the computer as if it was a desktop.