SanDisk joins Panasonic in the SDHC with their announcement of a 4GB Class 2 SDHC card. These SDHC cards, if you don't remember, adhere to the SD 2.0 spec, which supports cards over 2GB. The projected sizes for this current spec goes from 4GB up to 32GB.
Each one of these cards go for $199.99, but come with its own special SDHC USB reader bundled, because your 53-in-1 card reader doesn't support SDHC just yet.
One of the best features of SDHC cards is their high 5MB/s transfer speed. They make Speedy Gonzales look like regular Gonzales.
Press Release [SanDisk]