Corsair's flash memory line of USB drives has gone up to 32GB capacity. This includes both the standard Voyager and Survivor product lines.
Both Voyager and Survivor retain the design of previous 16GB uniths, same packaging, same everything, but now with 32GB. The high-end Voyager and Survivor GT are still at 16GB, since these use high-end chips capable of sustaining high read and write speeds. The interesting thing is that Corsair is no longer advertising write and read speeds, since they are also very dependent on your system specs; so you won't see any data regarding those on Corsair's flash products package.
The 64GB flash drives will have to wait, since there is no way to put 64GB in a housing of these dimensions, so nothing there until they manage to shrink those chips a bit more. Even so, 32GB sounds great.