I'd like to suggest adding a simple setting that allows the user to disable swiping between boards. This would be helpful for users that prefer to set up a board specifically for the purpose of switching to other boards.

It would also help to prevent the common issue of trying to press a button, but the device thinks you're trying to swipe.

On that note, I think this setting should also allow buttons to continue being held even if the user's finger moves while holding a button. This would make Deckboard a lot easier to use on large touchscreens, and make it work better for uses that require buttons to be held down, like when DB is used as a button box for simulator games.