It's definitely a tough call whether or not these rainbow colored micro vault tiny  devices by Sony are as cute as the PQI intelligent flash drives . They might not attach to your cell phone, but they are super small and come in four fashionable colors. Making the ideal storage device, you can use them to back-up all sorts of data including documents, presentations and photos. This drive also includes the added capacity of Virtual Expander, which lets you transfer up to three times more data. The green one has a 2GB storage capacity and is $60, the blue- 1GB and $40, the purple- 512MB and $20 and finally the orange- 256MB and is $15.