Amazon is selling the Coby Digital Photo Keychain for just $7.99 (free shipping if order total is $25 and above), originally priced at $29.95. Its “high-resolution 1.5″ screen provides bright images and an excellent viewing angle.” Product page.
Exchange and add new photos using the built-in USB port to communicate with your PC for rapid image file transfer. Displays JPG/BMP, GIF. Image files. Windows compatible.