A Digital Picture Frame Without the Lock-In?

The Cisco Kid asks: "My mom, bless her soul, doesn't quite get the concept of digital photography. She always complains that we never print them out for her, and gets completely flustered at the idea of looking at them on a computer. I'm thinking of getting a digital photo frame for her, only I can't seem to find one that fits the bill. I am aware of the possibility of building one, and may end up going that way (most likely using a laptop), but I'm really hoping I can find a consumer one that meets my needs — and that's where things get tricky." One of the major features that is required is the ability to update the frame over the network, without the need of any third party software. Has anyone seen a digital picture frame that doesn't tie you to a piece of proprietary software or a proprietary network? "I'd like to be able to hang it on the wall, and leave it there, so I want to be able to update/add pictures to it over either a wireless or wired network. I've found very few that have networking capabilities, but I can't seem to find any documentation as to what application-layer protocol they use. For example, I've found one that only connects to the manufacturer's website, to which you must subscribe — there is no option to use the network, directly. Kodak seems to only support using their proprietary Windows-only software for controlling or updating their frames (and I don't use Windows).

Is anyone aware of anyone that makes a reasonably priced digital frame that has networking and uses open protocols? Or should I expect to be taking apart the display hinge of a used laptop in the near future?"