There are military customers that are still using PowerPC in some systems. This has got to make them stop and think a bit. It does seem like ARM is where low-power is concentrating, although I don't think that Intel has quite ceded that territory yet. They are definitely not the home team on that field, though, and they definitely still have something to prove.
@Rick - Are they? Thanks for the head's up. That is a pretty good indicator that the trend has about peaked...
Kidding, of course, but I did once know a guy who was really good at jumping on bandwagons at precisely the wrong time. He got into programming in late 1999 and got a real estate license in late 2007. I should have kept in touch with him. That reliable a negative market indicator is a valuable thing.
You are correct. So many vendors and applications are moving to ARM that it has become difficult to keep track. Broadcom moved many of its MIPS-based products to ARM, Freescale moved many products from Power to ARM, and now IBM. And, ARM is the dominant architecture in many vertically integrated company and applications. Even the server vendors and data center powerhouses are anxiously awaiting potential ARM-based products. While the battle between architectures is likely far from over, there is definitely something to be said about momentum.
Meanwhile in comms, the industry (including IBM now) is turning to x86 and ARM and away from PowerPC and MIPS. But ARM is still tiny and Mips is still growing in comms. The shift here could take 5-10 years to play out.
My first guess would be ARC, now part of the Synopsys DesignWare portfolio. There was an item on this site about how they had a recent design win over ARM. But I'm not familiar with the size of their market position versus ARM, which is dominant, to appreciate the significance.