A prototype should be ready by Jan. 2015.
A first version will definitely be available in May 2015, allthough probably not with all features.
If some features are essential for you, leave a comment.
Pricing: This is not a commercial project, so pricing will be very moderate. I don't know the exact price point yet, because I haven't sourced all the parts yet, and I haven't decided on the initial PCB run.