SanDisk unveiled the world’s fastest 32GB SDHC flash memory card this morning, due to be released in August. Targeted towards digital SLRs with up to 30 megabytes per second read and write speeds, it's especially ideal for DSLRs that come with HD video capability as it comes with a new Class 10 performance rating for HD video. (32 GB would be a LOT for just photos...)
If you have a DSLR with HD video, such as the Nikon D90 and D5000, it's something to consider. Using flash memory cards rated for higher speeds allows images to be written to cards faster, reducing the waiting time between shots and enabling continuous burst mode on more advanced cameras. Using faster memory cards is beneficial in capturing a series of fast-action images or human expressions and reactions, and it can provide a quicker read speed of files from camera to computer.
If you have a DSLR with video shooting capability, or even point-and-shoot with video, how important are these aspects to you when shopping for a memory card?