What does this mean for digital camera owners? Not much, immediately, because the spec needs to make its way into camera interfaces and CompactFlash memory cards. Once in place, however, it means faster picture taking (the buffer is less likely to fill up) and faster downloads of image files to the computer.
(As memory cards get larger capacities, it takes longer and longer to empty them!)
"Other enhanced features include Ultra DMA 33 and Ultra DMA 66 interfaces..." means that the CompactFlash form factor will continue to be the preferred format for flash memory by professionals. Here is a bit of tech trivia: CompactFlash cards contain all the circuitry on-board that makes them look like a hard drive to computers. That's why adapter cards are so much cheaper for CompactFlash than for other formats, like SD.