The “OpenStomp Coyote-1”:http://www.openstomp.com/index.html is now shipping.
It’s a clever idea–most guitar pedals are just software these days, why not have one where you can blow new programs onto it when you want. Especially when it’s heart is an 8-core processor targeted at the application in question.
The question is, will the community that it needs in order thrive come into existence. Since the software for managing it is currently Windows-only, I don’t expect to find out any time soon.