For all the travelling photographers - maybe something like this ist an even better solution for you and it's available for less than € 25,- ...
http://www.kingston.com/us/support/t...s?model=MLW221
Using it for ages for my iPad (Apple isn't even thinking about implementing any card reader hardware ... ) and it works perfect - it's also possible to copy files from a card to an USB drive (even to a HDD) directly