Asus
I seem to remember reading that Asus's lappad Transformer was doing rather well, probably because it sold with a keyboard as a 'computer' with a detachable screen. I bought one myself, where I would never buy just a pad.
A fad is a time thing, the pads could still be one, even with many sold.
Also, could we have a 'raving fanboi' label on the Reg's authors please? Just so I'm ready for the drooling and the raving and the waving of arms and so on in the article.