Last month when I was at CES, I was handed a big green box on the way out of the Microsoft Press Tent. I almost didn't take it, but I'm glad I did. Along with a full copy of Legos Star Wars, there were some other goodies in the box including a 2GB flash drive with "Enhanced for ReadyBoost" printed on the back. I had seen the term before when plugging in other USB drives to Vista, but I wasn't sure what it was - this is a feature you need to know about. ReadyBoost and SuperFetch are ways to use the fast read speed on a thumb drive rather than the slower read speed of a mechanical hard drive.
I put my laptop into sleep often and what ReadyBoost means for me is that it pops back on in 2 or 3 seconds, much faster than waiting for the hard drives to spin up. It also means Outlook starts in 2 seconds. This is one of my favorite Vista features. Not every USB drive will work for ReadyBoost, it has to be a moderately fast drive. TG Daily did a thorough write-up on SuperFetch and ReadyBoost
today, including charts and numbers.
Update: Check out
the new ASUS Vista-specific motherboards with built-in ReadyBoost memory and an external Windows SideShow