Mini PC's are the go these days; we can see this with the release of Atom aimed at Nettops and UMD's. Atom is truly a CPU for this market, but it is a somewhat limited CPU. Compared to the Nano, Intel still has a lot to improve upon. Nano does more, costs the same and is more adept at running Windows without any major delays.
We have started to see some interesting ideas come out, but Intel's limitations put on the Atom platform for its partners really limits what Atom is capable of. Pair it with some dual channel memory along with a better IGP and you may see some HD movie playback as well.
MSI's industrial board is extremely good for what it has to work with; it has the potential for a great car PC platform as it allows for the use of all the major features you will have in a car such as USB GPS, WiFi through the mini PCIe as well as TV playback with an add-in PCI tuner card.