Sony seems to have majorly underestimated demand for their recently released HMZ-T1 head mounted display. Stock shortages were apparently worldwide at launch, and Sony’s US HMZ-T1 product page no longer lists 1/17/12 as the estimated ship date for new orders, instead saying “Temporarily out of stock. We will email you when your product ships”. Many of the international sites simply say that the unit is not available currently.
Interestingly, Sony has completely revamped the US HMZ-T1 product page (the old one is still hosted here, for comparison). Previously it was your typical SonyStyle product page with some basic information about specs and features. The new site is more of a micro-site experience with a lot of new graphics and several sections explaining specific features of the HMZ-T1. Quotes from both Engadget and Gizmodo reviews of the HMZ-T1 (and links to them) are also featured on the new page.