Just Completed the upgrade and was very happy with the result. The kobo recognizes both the upgraded memory and the external memory giving the device a total of 48 gigs of memory, the external card is 16 gigs and the internal card is now 32 gigs. The memory is class 10 for both int and ext memory. Both memory cards are Lexar memory. The 32 gig is on sale at Staples for 24.95, it includes a usb memory reader for the card as well. The regular price of the card is 69.95$ca
Just for a heads up this is available in Canada and is on sale currently (April 10, 2013). I do not know the price of the memory any where else.