Myth
We can accelerate the startup of Windows Vista and launch applications quicker on Windows Vista using ReadyBoost.
Reality
FALSE (but somewhat true anyway)
Explanations
This technology is still under development. It may even slow startup of Windows Vista. However the ReadyBoost speeds up some applications (like photoshop) but only a few seconds.
But note that: the SP1 (Service Pack) improves Windows Vista ReadyBoost a bit.