Yeah Intel was looking for a 'good' MOBILE cpu line, so they gave a small team in Israel the go ahead to basically update their ancient P6 (aka Pentium Pro aka pre-NetBurst CPU desing). After a ton of work (and probably a LOT of drugs) they created the Pentium M (for mobile). Then AMD kicked the shit out of Intel's 'we want to hit 10GHz on one core' netburst designs (which when they tried to tack two on one die made for a great space heater but mediocre CPU)... and they panicked. They looked around and realized the Pen M design could easily scale UP in both TDP and core count... and the rest is history. Last real break through / paradigm shift for Intel beyond the usual tweaking and reworking and making the monolithic design BIGGER and more powerful. The really sad, sad part is Intel litterally spent Billions and years on the dead end NetBurst idea... when all they had to do was continue with what they already had!
Its why I say that Intel is sooo huge that they can easily outspend AMD, it just depends on IF they have another little oddball project tucked away sucking up merely a fraction of a percentage of their RnD budget or not. If they don't... will be a couple gens before they get back on top. Either way its great for consumers as AMD has once again blazed a trail (of necessity) that Intel will probably have to follow... or at least be forced to blaze a(nother) NEW trail. Time will tell how big the impact will be on the next decade or two of CPU design but it is the end of 'this gen is a minor improvement on the last THREE gens' days.