I'm enjoying this program. It's got what so many lack these days: simple, straightforward, focused on doing one thing competently.
But I've got one suggestion that I think would be a big improvement. With multiple monitors on my desktop, I've got a good chance that when I do the mouse shake thing, this program pops up on a different monitor, which is rather annoying. Could you make sure that it pops up on the same monitor as the window I've selected?