When it initially came out I thought it's amazing. The idea of immersive computing actually is, more than amazing, natural. And I think we're actually on the path towards that, maybe just not through Dynamicland directly.
It seems a bit like Ted Nelson's Xanadu - a vision without the end-to-end capability to realize it. Most inventions had a visitonary that had the ability to realize them to some extent or catalyze the talent to supplement it. Whether that's from being to early or not havign the right people around it, I can't brush of the exclusivist feeling that surrounds the project and last words on Bert Victor's note: "I'd appreciate if you don't as for my opinions on things". IMO you either build for yourself or for everyone else. Both are ok, but certain mixes of attitudes are incompatible.