smib
is a big honkin' homo
They aren't that bad. Most netbooks have a dual-core 1.6 GHz Atom. Not gonna beat a top of the line Core 2 Duo but it's very usable.
All Atoms in netbooks are single core. Intel does not allow manufacturers to put the dual core into anything other than desktop PCs as it could start to cannibalize sales of the low end CULVs.