you've misunderstood what is meant by a 32bit version of Select. The StrongARM is capable of executing both 26bit and 32bit code. Aemulor allows *hardware* that won't run 26bit code (eg: ARM9, XScale in Iyonix) to emulate this code.
A 32bit version of Select would not change what code a machine could execute: A RISC PC would still run 26bit code, an Iyonix still wouldn't.
Software that works on newer, 32bit processors is often referred to as "32bit clean", meaning it has no code that won't run on a 32bit processor, therefore the software can be said to be 32bit, yet will still run on any RISC OS computer made after 1994!