Just keep polishing them and getting them cross browser. I'll be forking the project and using them.
I was personally impressed that drag actions were supported, because that's a frequently overlooked aspect when people roll their own slider toggles. Without looking at the source, I would guess that implementing mobile touch events would go a long way towards making this library cross-browser.
I was surprised that Bootstrap didn't have these from the get-go, so I'm going to say, again: hell yes. This is practical, useful development that will make a lot of apps better.