Nifty Uses for Today's Digital Picture Frames?

The ever-prolific AtariDatacenter asks: "The prices of digital picture frames have dropped dramatically over the past year. And some of the upcoming models are promising things such as MPEG playback, and Ethernet access. Are there any killer uses for the current generation of digital picture frames? How about the next generation?" Of course, before you race out to buy one of these picture frames, be sure to look at the terms of use. Last I checked, some of these things were downright useless without the service and fair-use unfriendly. Have any of you found Digital Picture Frames that were worth the price and that actually let you play with the internals a bit?