I'm currently using the Atrix Lapdock on with my RAZR. So far I'm loving it. Only issue I have come across so far is that the Flash version on Webtop isn't the latest verion, so some flash games on Facebook don't play.
Wieght - really light compared to my Dell netbook.
Screen size-A lot larger then my netbook. And it is wide screen, image holding your phone sideways and enlarging the screen to 11.6"
Keyboard/Mouse-Didn't think having a keyboard and mouse would be that important with a phone, but now that I have them it's awesome.
When the screen is closed, the phone treats it like a normal dock, so you can set you phone to different Dock profiles, like Alarm Clock.
Love having the USB ports to add things like camers & drives.
Love the battery-Have had it on since 8:00 CST and it's still got 2 of 5 lights lit. Screen has not turned of since.
Need to figure out how to better mount the phone.
Sometimes it doesn't come up and fill the whole screen, about 1/4" space all the way around.
Wish there were more option for Apps to install, like Open Office (right now using the phone full screen for for this)
Once I get more time with it, I will update my Likes/Disklikes with more. So far really liking it though.
Sent from my DROID RAZR using Atrix Lapdock using XDA