Sony just announced a new S Series XQD card that increases the speed of the card to 168MB/s -- that's just past the limit of the compact flash card.
At 64GB, the card also doubles the original series' capacity. The 64GB card is due out this month, where a 32GB version will be released in the fall.
Still, can anyone think of an in-camera use for a faster card? And do you think it's really worth whatever the extra expense might be just to be able to transfer files a little bit faster? Before you decide, one neat feature of the 64GB capacity is that it'll allow 10fps continuous shooting of an entire 100m sprint (Olympics anyone?).