JKK has uploaded a new video where he shows an Amtek T700 with Vista installed and everything working. In his last review the hard keys were not working but in this video they are working using a 3rd party application.
According to JKK, Vista is not good in this device if you are planning to use applications that need to process a lot of graphics. I have been following all JKK's video and it seems to me that Vista is running very fast in his device. In mine IE 7 opens a lot slower than in JKK's Amtek!