Hi!
I just want to tell you that this extension is awesome and I use it on all my machines, BUT I always have trouble finding/installing it, since its not really optimized for SEO. I know this may sound dumb, but you should really emphasize that this extension can move tabs between windows, since its a killer feature other extensions don't really provide. Yet when I'm searching for "chrome move tabs between windows" on Google it simply doesn't list this extension, which should be #1 in my opinion.
(This just happened to me today: I wanted to install this extension at my workplace, but I simply couldn't find it, while I knew that I have this installed at home. I just did not remember its name and Google doesn't know about it either.)
So I suggest updating the Chrome Web Store description so people can find it easier.
Thanks for the extension again!