After Intel's announcement of the D201GLY2 motherboard, a Celeron 220 based low-power-consumption board that does not require a fan, and with a price of US$75, several tests and reviews have appeared.

Mike Chin and Nicholas Geraedts have done an exhaustive analysis at SilentPCReview. One of their main conclusions is that it cannot be run on a tight box, it requires some air flow to maintain the CPU at reasonable temperatures. This flow could come from the Power Supply Unit.

Here is Intel's official page.

And a short review by Yamawho at ABXZONE, in which he reports about tests changing the heatsink.