From a computer scientist's point of view that Bitcode idea isn't exactly new. Java has the same concept, called bytecode, since day one. And please don't connect any dots between James Gosling, who invented Java some 20 years ago, and Dr. Geoff Taylor – although they are both Canadian.

So Apple's Bitcode is no secret hint to POET. Since the Bitcode concept support all kinds of target CPU architectures, it can also support POET-based CPU architectures, but in no way exclusively.

The nice thing is that you would need nothing more than a Bitcode backend for such a POET CPU to have Apple applications run on it. The analogous is true for Java which would need a so-called Java Virtual Machine (JVM) to run on the POET CPU. And the GCC (Gnu Compiler Collection) also mentioned in the article would need an additional backend only to generate machine code to be executed on that CPU.