For a picture frame, you should consider the Chumby 8 (or its relatives, the Infocast 8 and WowBox 8) -- this gives you an 8" screen at 800x600 as opposed to the 3.5" at 320x240 on the Classic and Chumby One. All Chumby-family devices have resistive touch screens to my knowledge, so you're out of luck on the capacitive touch screen (capacitive screens are more expensive hardware-wise, I believe, and one of the main points of a Chumby is to keep the price low).
I personally would recommend against the Sony Dash, as it's much more locked down in terms of tweakability as well as channel availability, and the service is supported (heh, right) by Sony, rather than Chumby. I do believe Chumby supports the service for the three brands I listed (though the manufacturers are responsible for hardware support)... Duane will probably correct me if I'm wrong on this ![wink](https://forum.chumby.com/img/smilies/wink.png)
In its favor, the Dash does support Netflix I believe, as well as some other DRM-based media services (which is part of the reason for it being locked down). For your purposes though, it sounds like you might be better off with a device running the standard Chumby service (Chumby, Infocast, or WowBox).
Alternatively, you can get an Android tablet with whatever screen resolution and touch capability your heart desires, and load the Chumby app on it ![smile](https://forum.chumby.com/img/smilies/smile.png)