They also offer an 8 GB SD card for $18.99, a 16 GB SD card for $37.85, or even a 32 GB SD card for $90.95.
Even though the Wiz does include 1 GB of built-in memory, you can pick up a 4 GB SD card from Amazon for $6.90. Note: (December 2009) I highly recommend investing in a separate SD card. Part 1: Installing Emulators / Part 2: Emulators Reviewed In order to get your favorite games up and running, you will need to place various emulators and game (rom) files either on the Wiz's internal memory, or on an SD card.