Intel is already selling a mini-ITX board called D201GLY, and this plaform has a Celeron 220 CPU. As we have one we decided to compare them, as this platform is fitted with a Conroe-L Celeron 220. We know this is a slower CPU, as it's only clocked at 1.2GHz, but in some tests it was more than twice as fast as the Atom N230. It scored 11.260x in Lame. As it's a single core CPU without Hyperthreading the benchmark runs within a single thread.
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Sandra tells us that the 1.6GHz Atom is about two times slower than the single core Celeron 420 at the same clock speed, at least in the FPU test. It was funny to notice that the 3GHz Core 2 Duo E8400 scores ten times better than the Atom 230.
As long as you don't use any multi-media applications, the system runs fine. So the most common use will be for POS systems or surfing stations. But if you think you want to do some multi-media stuff, just forget it, it's too slow.
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It doesn't even render that well, as Cinebench was incredibly slow, slower than we've seen in years.