If SanDisk can do it, so can Toshiba. As a matter of fact, today the Japanese company announced that they will start producing 16GB microSDHC cards in January 2009.
At the same time, Toshiba announced new SDHC cards of 8GB and 16GB, with production of these set to start in December of this year.
All of the new SDHC memory cards comply with the SD memory standard version 2.00, while the SDHC cards announced support class 6 ultra fast read/write speed, delivering a maximum write speed of 20MB per second.