the other night at the users group meeting (status, northern indiana), we had a presentation by Steve Will chief architect for ibm i and by another local guy on power 8 side of things.
For those who might get the impression that ibm has been lagging or such, that would be false. I won't try to go into detail except to say that big blue is pretty much on the mark. And the new things they are coming out and ahve come out with etc. We aren't some forgotten customer that is for sure.
As far as the hardware, for power8 alone, ibm spent over $2 billion and of course they are working on power 9 and probably power 10 etc. And the benefits of power over the x86, well again I won't go into detail except to say that if I was an intel stockholder I would be worried... And they talked a bit about the open power group etc.
The power 8 boxes are fast and that is an understatement.