Using Dayframe to turn an Android tablet into a digital photo frame may not sound like the most affordable option out there, but at this point in time, more than a few of us have a couple old Honeycomb-era Android tablets lying around that aren't good for too much else. Following the introduction of Chromecast support in version 2.0 last month, it's pretty simple to turn your TV into one as well.
Update: Cloud.TV has clarified that it will unlock the Prime features for anyone who bought the old Prime unlocker, but does not have it installed. You just need to get in touch to make that happen. That sounds reasonable.
Update 2: Dayframe Prime unlocker app is back too.
Update 3: Google has asked Dayframe to pull Chromecast support for the time being until the official Play services SDK is out.
The newest app from Cloud.TV is out in preview form, and it's already looking quite promising. You might know Cloud.TV from the wildly popular HD Widgets app. This time the dev is tackling dock apps with DayFrame. We've seen various photo frame and dock apps, but the way DayFrame integrates Google voice input is something new.
The app can display photo streams from Tumblr, Instagram, Facebook, Flickr, and Twitter.