The tiny flash drive won't be cheap, opening up with a $250 price tag. For that price you'll get the standard suite of software they include with the drives, along with a lengthy warranty.
Whether in flash drive or SSD formats, solid-state storage in general has seen an explosion in the past two years. Capacity and performance has skyrocketed, quickly catching up with mechanical disks. If it continues at this rate, we might see flash capacity on par with desktop hard drives in just a few years.