Not sure if Ceton is losing sales to silicon dust or what.... but huge price drop.
http://cgi.ebay.com/120732892235 (No longer available)
UPDATED WITH LOWER PRICES FROM THE THREAD:
(As of 6/10/2011 6:30 AM Pacific)
Erwin Computers: $289 Shipped : Get $10 off your purchase of the InfinitiTV 4 when you use coupon code: mr10off