All of the frames I've used so far have the manual viewing and automatic slideshow functionality, although how easy it is to use varies. I'd expect branded (eg Philips, Sony) frames to be easier to use than non-branded.
They generally won't work too well on your lap because most will need power and the viewing angles aren't great, but you can place it on the coffee table and use the remote control.
With the preview of Honeycomb and Android 3.0, along with the pending arrival of iPad 2, I can't imagine buying any tablet in the next 30-60 days unless they need a drink coaster sometime this Summer.
Google Officially Posts Android 3.0 Sneak Peak, Touts “Holographic” UI
Motorola Xoom looks extremely sexy! Dual-core processor, and a reported 10 hours of video playback time! It seems the Septics may get this first....
I just got the Archos 101 internet tablet today.
Gonna give it a few days and post what i think of it.
But after playing around with it for 1 hour so far it's totally awesome.