It all started with Netbooks, which where mini-sized Notebooks. Then along came Nettops - no, not small laptops, but smaller Desktops.

Now MSI, maker of the popular MSI Wind series of Netbooks, like the MSI Wind U100-432US, has brought out what they call “Wind Netons”, which are all-in-one PCs. They didn’t just announce one, but three – see this article from CNET’s Crave “Crave: MSI announces three all-in-one PCs, calls them Wind Netons for some reason“.
The all-in-one PCs are related to the Netbooks as they both make use of Intel Atom CPUs.

MSI is not the only Netbook manufacturer to introduce an All-in-One PCs running Intel Atom CPUs. Asus has introduced an “all-in-one touchscreen PC” called the “Asus Eee Top ET1602 PC”. A third All-in-one Nettop to be announced was the “Averatec 18.4 inch All-In-One PC”. It also runs the Intel Atom CPU, but doesn’t feature a touchscreen. Instead, it has a DVD burner and a larger screen

One question which needs to be asked is why Desktop PCs are using the Intel Atom CPU, which is primarily intended for low battery usage on Netbooks. It could be that it is a “greener” option, but it does leave the Nettops rather underpowered.