There are some ups and downs to the massive 480 GB Atlas SSD. The obvious up side is 480 GB of storage on a drive that is 2 inches (50.80 mm) long. Most thumb drives are just under 2 inches in length. This means Ultrabooks, tablets, and so on can benefit from not only SSD speed, but increased capacity of current offerings. The down side is the $499.99 USD MSRP.
This is not something you will likely see flying off the shelves at tech retailers. This is an item I see Mushkin selling in bulk to Acer, HP, Sony, and Apple for their top-tier Ultrabooks. I personally would love to see these find their way to DVR devices or the next generation of consoles, but that may be wishful thinking.