The B5K architecture is the prototype for what modern systems aught to be like. If I ever strike it rich, my next business would likely be reviving the B5K for enterprise. Think TCO, enhancements to support dynamic languages, etc. Oh, and I'd use pascal style strings (32bit length field minimum).

The idea of an instruction set designed for the application is enlightened. Obvious yes, but not obvious enough for people to follow through with it.

EDIT: Also, this and the Carmack keynote in one day makes HN worth all the noise. This is what I came here for.