In November, Toshiba announced that it would begin shipping high speed 8gb SD cards in January 2007.
Of course, 8gb SD cards have been available for awhile, but only Class 2 cards which average about 2MB/sec write speeds. Toshiba will start making Class 4 card which average about 4MB/sec write speeds, which are much better for recording video and for those of us who like to shoot photos in continuous shot mode.
Source:
Toshiba to Double SD Capacity Again. Scott Fulton, BetaNews, November 20, 2006.