[funnyflamigo]

I apologize I misread OP's question. I incorrectly interpreted it as "hardware that supports opensource firmware such as DD-WRT/Tomato".

In terms of hardware like you mentioned there's few open source SBC's at all. Even fairly open hardware like the raspberry pi have a proprietary firmware blob. I guess it will come down to how strictly you define "open source". If you define it as "we have firmware/schematics for every chip on the board" then we'll likely never have that (I don't think even Linksys has that type of access).