You have to open this up to use it but at least you won't lose the cap, which is the most common problem of the today's USB sticks. The device managed to stay such small as the company managed to put all the memory components into the connector alone.
It comes with a three-year warranty and 1GB size is the first one, while larger ones are about to follow.
It's super small, it should be available any day now but we don't know the price of it. Here is how it looks.