I was in a conversation with a design engineer for a fairly large international company a few weeks ago, and our conversation drifted toward supply line problems and in particular capacitors.
And he went on a major rant about the amount of decoupling needed by modern CPU's, and the difficulty of sourcing proper capacitors. Tantalum is a strategic material and other materials are distinctly inferior. He said the processor they are using in their current product, a 160 MHz single core with a lot of ARM-like features, requires 10 to 20 decoupling caps. He said that people making cheap stuff like toys and games would make their prototype, then start pulling caps until it stopped working, then put a couple back in. Making industrial devices which have to perform to spec he couldn't get away with that.
I bring this up because it seems like P2 is designed from the outset not to need that much decoupling. And that could be an important advantage for some applications.