Upgrade path? Really IDC? AMD has been more than generous towards their clients who bought 6100 MC systems. They got 2 generations worth of upgrades on the same platform. You are asking for 3rd generation on a platform that has no room left in it to grow. If you look at intel, they have no problems upgrading their sockets whenever they feel like they have to.
If new SR core requires new platform in order to perform better then it's the best way to go even for consumers. They would get a platform that will, similarly to initial MC one, be ready for at least one if not 2 next gen. product upgrades .
BTW PD based opterons(6300) are not doing bad at all. AT had a good article that exposes their strengths and weaknesses. They are still not the "ultimate alternative" to Xeon but they do present a viable alternative. You can also check spec.org for opteron 6300 and xeon SB-E(16T) results and see what results say.
That's not the kind of upgrade I am talking about. The server guys in the audience know well what I am referring to and how it impacts their purchasing decisions when it comes to the confidence they have in their supplier's maintaining a continuing presence in same marketspace for after-sales support and so forth.
There is a reason AMD's server market share is as low as it is, don't fault me for recognizing that reality nor the reality of why companies have a vested interest in clouding the future of their product lineups.
If mindshare and market momentum were not a factor in motivating sales then marketing would not have invested as much as it did into JFAMD's compensation package to have him busy himself making blogs and PR videos for a product that wasn't purchasable at the time.
You act like what I am touching on is impossible or irrelevant, AMD's own spending says otherwise. If there wasn't a psychological need for customers to think that AMD will be in the big-core server market indefinitely then there would not be a need to show such roadmaps to analysts and customers in the first place.
AMD is trying to avoid Nokia's fate, Nokia announced Symbian support was going away
in the future only to watch market demand for their still supported Symbian phones completely dry up in the channel. Nokia did right by the customer, letting them know the lay of the land, but did not do right by their shareholders who got socked in the gut. AMD is doing the opposite, and good for them.