You can buy the Mypressi twist in the UK from these guys;
At GBP119.99 incl VAT we think it is ridiculously good value, given how good an espresso it knocks out. The order page says they have 125 units in stock as I write this
The real trick the Mypressi twist pulls off though is being able to knock out multiple espressos in quick succession
In fact, given that in winter you have to heat the Mypressi for a minute or so in a saucepan of hot water for the first shot only, the more shots you need to make the faster it becomes on a per cup basis as you get to spread this initial downtime over a larger number of shots. The incredible thing is it doesnt over heat as it is powered by compressed nitrous oxide, not hot water or an electric pump
We are going to try & assemble a primitive video tomorrow to show you how easy it is to use
In case you are wondering we bought our own Mypressi Twist, and we are not receiving any form of remuneration or benefit in kind for reviewing this product. We are simply unaware of any other focused product in the market place that meets the needs of espresso drinkers
We have also received an email from the CEO of Mypressi correcting our unduly pessimistic expectation that using the Mypressi without the lower orb will invalidate the warranty. He informs us that it will not. As a result we would strongly recommend that you discard it; espresso running over plastic does nothing for the taste and it rests nicely on the bench with the flat base of the portafilter exposed.