Now they got backed, I don't see the reason why would they not make the keyboard. But if their business partners are getting paid is another story.
The fundraising period hasn't ended yet, at the time of writing this there's 12 hours to go, and judging by the Kickstarter comments people who have already backed the project are starting to reduce/remove their backing. I wonder if this is the first time there's a chance a project that reaches its target on Kickstarter ends up under the target by the end?
A kickstarter project cannot go under funding goal in the last 24 hours if it has already reached its goal. You can back out if you contribution doesn't bring the project below goal. Part of the anti-trolling rules.