Hey all, thank you for your very kind comments about the TWIST.
I've put a few photos online here and will post more and videos as soon as I get the chance.
http://picasaweb.google.com/mypressi/PourSequence?feat=directlinkMeanwhile, happy to answer any questions you have.
Couple of things: the spouts are removable. It makes for an awesome naked shot. Also the production versions have better temp control in the dome. The problems regarding pressure during development were substantial. I can't go into details, but the TWIST uses a new type of regulator invented by our incredible engineering team. We actually also have one hooked up to a computer controlled pump right now going through a 5,000 cycle test with the results flowing into a data acquisition system.
The pressure is a very precise 135 psi at the start but it can actually go up during the shot, depending on a number of factors. (This may be a new one for espresso machines. It does mean there are fewer wasted shots from an over-tamped basket or too fine a grind, if you don't mind an over-extraction.)
But really, the cool thing about the TWIST is that it delivers whatever you put into it. We were testing a fantastic Barefoot roast yesterday and it was awesome. One great shot after another.
Anyway, if you have any other questions, please do not hesitate to ask.
BTW: I'll be in Manhattan at Cafe Grumpy this coming Tuesday (224 W 20th) at 2.30pm. If you want to see the TWIST in action, please stop by.
--Stephen