Intel has several licenses from ARM, and making inferior chips has never hurt their business before. If anything was going to "doom" intel, it would have been the Itanium fiasco or the terrible Pentium 4 performance. The mobile market is hardly a company-killer for intel, especially because all those underpowered netbooks are going to need some serious server strength on the other end of their 3g connections... and that's where Xeon comes in.