OK, here is one product someone should build. The technology is available, but the existing players in the market don't seem capable of pulling this one off. It will make someone rich, maybe you, dear reader.
A digital photo frame that is truly plug and play and completely grandparent-safe. It will automatically pull down pictures from a Picasa or Flicker album and display them as a slideshow. I should be able to set it up and ship it to my parents, who will simply have to plug it in to see new pictures of their grandkids every day.
Your product is disqualified if it requires: signing up and paying for a monthly service, navigating a clunky UI on the small screen, only 110V electricity.