OCZ calls it quits on Cryo-Z Subzero Cooling Unit
 

While regular coolers have no problem being transported by boats or planes, a different set of regs apply to pressurised tanks, and with sub-zero cooling using nearly-identical concept as fridges, it would take a decent increase in manpower in every continent where the product is distributed to do a manual fill of each tank with gas, killing the once touted affordable price range.

http://www.theinquirer.net/default.aspx?article=40382

Article withdrawn :o

My guess is however that the Cryo-Z will be US only. shipping it to Europe just would be too expensive and indeed kill the affordability...