http://www.ubergizmo.com/15/archives...ntroduced.html

Looks like the most popular flash memory standard, the SD Card format, will undergo an evolution in Q3 2006. SD 2.0 offers FAT32 formatting as well as a maximum capacity of 32GB - all this sounds fine and dandy until we found out that sizes of 4GB and above are not compatible with existing SD 1.0/1.1 standards. Any SD card that are 4GB and above in capacity will be dubbed SD High Capacity (SDHC), although the transfer rates of the new format maxes out at a paltry 6MB/s. This means SDHC card prices should begin to drop soon, with the 4GB version available for less than 150 currently. Looks like consumers are being led by the nose again when it comes to compatibility issues and new formats.