Picwing (or someone) should make the reverse of Eye-Fi (http://www.eye.fi/ ; it's a WiFi enabled SD card that transfers photos from your digital camera to your computer).
The reverse would just be a similar card (probably identical hardware, just different software) that can be plugged into any frame, and automagically download images from Picwing's website, or an RSS feed, or whatever.
Take a photo(s) from dig camera and instantly it's published on my and my friend's PicWing compatible devices. From photo frames, to TVs to screensavers to Tivos ..Boxee .. Windows Media Center...flickr accounts, facebook profile, etc...
Wouldn't that end up being the same price as a photo frame with builtin wifi? I guess it would be good for people who already have a regular frame they want to make wireless.
The reverse would just be a similar card (probably identical hardware, just different software) that can be plugged into any frame, and automagically download images from Picwing's website, or an RSS feed, or whatever.
I'd buy it.