One thing I'm surprised about (or maybe annoyed actually) is how, with time, the rumored Apple tablet has become something certain to compare other products to. Even though nobody has ever seen one.
Certain publications can't resist that temptation.
I remember a Joel article (at least I think it was Joel) about a slightly similar concept. He talked about putting a link in a web application to some feature that didn't exist yet. Then you would track the number of 404 hits on the link to gauge interest.
Intel started taking market share back from AMD when they returned to delivering CPUs with better $/performance, and $/watt/performance, in 2007. While AMD was building better mousetraps, they steadily took market share; nobody outside of HPC was taking IA-64 seriously beyond about 2004 anyway.