halcyon :
You can put lipstick on a snail...but its still a snail.
But once even the snail is fast enough to handle overnight shipping, most people stop caring how 'slow' the snail is vs other delivery methods.
While the new Atom may be slow compared to modern desktops, it is still ~5X faster at many things people enjoy doing on their ARM/Android-based smartphones, tablets, nettops, smart-TVs, etc. You don't see half as many people complaining about how outrageously slow ARM-based CPUs generally are.
Most of the market is starting to settle in the 'good enough' zone so CPU/GPU/APU manufacturers need to design products specifically for markets where "good enough" is all that is required.