Brad from Tweakers Australia sent in an email with information from a press release saying that Seagate an Intel have demostarted the first Serial ATA HDD operating at 150mb/s.

Seagate and Intel today demonstrated the industry's first native Serial ATA hard drive implementation, at PC Expo in New York. The companies connected a new Barracuda ATA V hard drive - with a native Serial ATA interface running at full speed - to an Intel reference validation motherboard in a high-performance PC game box, provided by HardDrive.com. The Serial ATA interface provides a throughput of 150 Mbytes per second, and a very quick and responsive experience in extreme applications like gaming, home video editing and home network hubs.