Logitech K410 Harmony Smart Keyboard 2.4GHz Wireless Touch Keyboard (Logitech K400 Upgraded)

Pros: Nice compact size.
Works on my Windows 7 HTPC in the living room up to 8 feet away with no lagging.
Real nice that there is an on off switch, this saves the batteries.
Good looking also.

Cons: The touchpad is tad on the weak side as far as tapping to open something, but when used for moving the cursor, it works great. The buttons work fine also, as do all the keys. Those who put down as a con, that there is no numeric keypad with numlock etc, need to lighten up, if you read the specs, and / or just look at the pictures, you will see that there is no numeric keypad so why do you put that down as a con?

Overall Review: For the price, this is a good little, simple, compact wireless keyboard that works great in the living room or anywhere elas you want to use it.

Pros: I was pleased that the receiver and keyboard worked right out of the box with Ubuntu (11.04) with no necessary drivers. All the keys function in Ubuntu, even the home key.

The range of the keyboard is good. I was able to type without an issue up to fifteen feet away.

The keyboard is small & lightweight and fits comfortably on my lap. No problem with response from either the keyboard or trackpad. There is a left mouse button on the left hand corner of the keyboard to allow you to grip it like a controller when you're just using the trackpad. Makes web browsing comfortable from the couch.

I have been using this keyboard almost every day for about 3 months and I am still on the original batteries.

Cons: The trackpad uses two finger scrolling. I find this an odd choice as the layout of the keyboard leans towards the user gripping the controller at each end and using his/her thumb to manipulate the trackpad. An option to turn on edge scrolling would have been a good addition.

Although the keyboard's range is good, I have noticed that the range drops dramatically if the keyboard does not have line-of-sight on the receiver nub. When the receiver was plugged in the back of the PC, I had difficulty maintaining a connection from my couch six feet away. Switching the receiver to one of the front panel USB slots solved that issue mostly, however the keyboard still drops connection once in awhile whenever I use it at an angle where my coffee table blocks the receiver. I have to lift the keyboard slightly for a moment to re-establish contact

Overall Review: Overall I am pretty pleased with the keyboard. If not for the connection issue I wrote about in the Cons section, I would give it 5 stars.