It is completely a bullshit patent. The patent office got their fees, and then they'll get their fees again to re-evaluate it.
What use is a novel invention if the patent owner does nothing with it. I would argue that Moom or other apps have provided more value to society at-large as compared to the patent owner.
That leaves aside the liabilities that reading patents to learn about technologies can open you up to, in the form of "willful infringement.
If this patent were filed in 1988 it might have a hope of standing. It was remarkably filed in 2008, years after countless grid-based Windows manager had come and gone. It stands no hope, and the EFF will make quick work of this.
The USPTO needs to be held liable for this sort of nonsense, or alternately people who file spurious patents need to be penalized. This is legalized extortion.
And since this always comes up - someone is going to say "read all the claims...this is novel only in its entirety". The claims of a patent, unless specifically cross-referencing, hold independently.
I am approaching this as, "You had better be rich, and prepared to throw 500K at lawyers to defend or attack a patent lawsuit. And even then, has no guarantee of any good results.
So that should be interesting.
This patent may also cover the window arrangement widget in Adobe's products, which seems to date back to at least 2011 (google for 'adobe application frame'): http://egypt.urnash.com/media/blogs.dir/1/files/2017/05/Scre...
...but somehow I doubt they'll be suing Adobe until they've successfully gone after all the other folks who independently invented something similar to their patent.
[1] http://lifehacker.com/5715221/divvy-window-organizer-lands-o...