ARM based development platform that's similar in design to a Ceiva picture frame

Hello from the Eighth Doctor
I've got a project that's being thrashed out in the paper and pen stage:
I need to find an ARM based development platforn that has all of the features of
a
Ceiva picture frame, but none of the overhead. Namely the insane price. And that
precludes Ebay. I basically don't need the modem so that's not part of the
image,
but an Ethernet port would also be acceptable, same with a USB port.
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Gregg C Levine drwho8 atsign att dot net