Inkbase: Programmable Ink
> Most of our examples were built entirely on the iPad, using Inkbase’s interface. Sketchy math was not. Much of the code that runs it ... was written on a laptop.<p>> Building larger, more technical software systems in Inkbase becomes extremely difficult for many reasons, from the poor ergonomics of typing with an on-screen keyboard<p>Nobody has really solved the ergonomics problem of being able to type on a keyboard and also sketch, and have the entire system be portable and friction free.