Yeah. I've got some hardware that should work, Raspberry Pi, Seagate Dockstar, etc. The problem I ran into was that bridging my USB wifi adapter to the internal interface was very flaky. It was dropping some frames and passing others. A kind soul gave me a patch to run tcpdump on the bridge interface to see what was happening but I put it on the back burner and never followed up.
It just occurred to me that I never tested this on other platforms, it could be broken on all platforms... I should test that...