I'd love to go with an Ion nettop for my wife's next computer, but I won't even consider it without an Atom 330 dual-core. The only one I've come across so far is the new Acer Revo, but they seem to be as rare as ATI Cypress video cards.
I was going to chime in that they were available at newegg, but I see they're now backordered.
The single-core Revo has been getting positive mentions on the mythtv user list lately, using VDPAU with the ION graphics to display HD video. (For those not familiar, mythtv is an open-source, Linux-based PVR suite.)
Any chance of seeing a review of either/both versions of the Revo?