I'll bet there's some new set of blunders - a duty of lead engineers is quality assuranceMe too - once the ToSeven motors are taken up by customers, the folks who populate Endless Sphere will soon get stuck into finding the pros and cons.
Imagine how much more swiftly TSDZ2s would have sold, if users could have ironed out some of it's wrinkles on day one. Manufacturers who embrace modification by users do well - look at Canon's success in the DSLR camera space, after leaving the door open for Magic Lantern firmware to be installed. Users made their cameras better, and they sold like hot cakes.