It has both SD slot and USB slot, just use the camera kit. Remember though, this is not a computer. I use it as a safety valve to store duplicates from my cameras along with my Macbook pro. That gives me two copies so I can blank out my cards and keep shooting. I resolve the low powered USB slot quite easily by copying my CF cards to SDHC cards and loading them rather than trying to use a USB card reader.
The iPad presents a very nice slide show with music for showing off your product, the display needs no further raves.