Superfast USB 3.0

[apogeeza]

some motherboards you can do this already

I know and I'm also itching for this:
http://www.gigabyte.com.tw/Products/Storage/Products_Overview.aspx?ProductID=2678&ProductName=i-RAM%20BOX

Wikipedia:

Second Generation i-RAM

The second generation i-RAM, GC-RAMDISK, was on display at Computex 2006 [3] [4]. Rather than using a PCI slot for powering the drive, Gigabyte had implemented the GC-RAMDISK as a 5.25" drive unit powered from a four-pin molex connector. The drive supports four DDR2 memory modules of up to 2 GiB for a total capacity of up to 8 GiB and the interface supports SATA II, which doubles the transfer rate compared to i-RAM.

 

[andres101]

Vista can do that already I read an article about that, titled something like "An operating system in your pocket". Haven't tried it out myself yet...

I was able to get my XP installation to boot of USB. It was a little tricky though. And as (almost) always with Ubuntu, it just works!