That would require my parents to have broadband access and a wireless router. Way too much for them to handle.
In addition, they're not saying if you can delete photos remotely. I wouldn't want to end up with a 1000 pictures in the frame and have the new ones in a rotation where it may take hours to show up. I'd rather keep the frame with 20 or so photos that I can swap with fresh new ones regularly.
Currently, I just send a new SD card to my parents and they know how to do the swap.