This digital camera supports an SD|SDHC|SDXC memory card, which is the most frequently supported memory card on similar spec cameras that have been on the market for more than two years. SD cards are by far the most common type of memory card. They are compatible with the majority of digital cameras.
Alternative digital cameras that support an SD|SDHC|SDXC memory currently available that you might also want to consider include the Panasonic Lumix DMC-TZ30 ($375.99), the Nikon Coolpix L120 ($299.50), or the Canon PowerShot N100 ($349.99) which has better reviews.
If the memory card type of this Leica camera is not good enough for you then you might also want to look at the Sony DSC-W800 ($88.00) (MicroSD (TransFlash and higher rated)|MicroSDHC|MicroSDXC|MS Duo|MS Micro (M2 and higher rated)|MS PRO Duo|MS Pro-HG Duo|MS XC-HG Duo|SD|SDHC|SDXC and higher rated).