Kingston just announced a new USB / microSD Mobility Kit, that combines its Kingston USB microSD Reader with a 1 or 2 GB microSD card, plus two adaptors, for both a miniSD and full-size SD card. It's everything you need to add storage to devices like cell phones which use the tiny microSD, and then read the memory on any larger miniSD / SD slot.
The reader is amazing -- it's basically just an extra-long USB connector, with the USB interface at one end and a slot for a microSD card at the other (the microSD card actually is so small that fits loosely in a USB connector).
Then pull the handy keyloop to slide the USB connector into the protective cover to shield the card. The Mobility Kit is available bundled with a 1 GB microSD card for $27 (black), and 2 GB (red) -- soon.
See more in the Portable Storage Gallery, under USB Memory Card Readers.
Find the Kingston USB microSD Reader on Amazon.com