Breaking the five second barrier:
HP Jornada 820 and other instant-on devices I've owned over the years.) The flexibility this could add -- particularly to smaller computing devices -- cannot be overstated.
So many want to see Instant On systems, and it certainly makes sense to see that on Netbooks. A couple of Intel Engineers at a recent Linux conference did some hacking and were showing of a Asus Eee PC that cold boots into a Fedora desktop in five seconds. Turns out they knocked out a couple of services that they felt were redundant and created a patch that allows read-ahead operations. That last move allows things to happen concurrently and not sequentially.
Also intriguing the same process allowed them to boot a Lenovo notebook with a HDD in 10 seconds.
(HT Kevin Tofel)