There are alot of flash drives available today with several different features. Some focus on portable applications, others on speed, or even ultra-portability. While some of these units have some nifty features, it doesn't do any good it you don't have it with you. Many flash drives come with a lanyard, but let's face it: for most people hanging a lanyard around your neck isn't a daily ritual.
This is where the ultra-portable flash drives come in. They are so small that you can attach them to things you have with you every day; like your wallet or keychain. A-Data has developed an incredibly small and innovative flash drive that has everything most people need you need (and nothing you don't).