The Official Unlimited Cruise SP Blog was updated today with some 3D promotional images of the game that can actually be viewed directly on your 3DS.
Once you have the zip file, 100NBGI0.zip, unzip it. Remove the SD card from your 3DS and stick it into your computer. You should find a folder labeled “DCIM.” Copy the 100NBGI0 folder into the DCIM folder, stick the SD card back into your 3DS, and hopefully it will work. Select the Nintendo 3DS Camera option from the system’s start menu and you can view the images.
If you don’t have a DCIM folder on your SD card, put the SD card back in your 3DS and take a picture. I’m not sure if creating the DCIM folder manually will work.