I've been researching a chinese tablet, to find out if it was compatible with Unity. One thing I noticed, and never until now knew the answer, was about ARM7, ARM9, ARM11 nomenclatures, because Unity works on ARMv7 processors. I found out that the answer is in Wikipedia, and I believe should be clarified:
http://en.wikipedia.org/wiki/List_of...rocessor_cores
As it turns out, ARM7 is a processor family, but based on ARMv3 or ARMv4. That's confusing, but with that table, it's easy to find out the real architecture of a given processor. So Unity will only work with Cortex-* and maybe with some ARM11 processors.
Sorry if it's irrelevant, but that cleared up my confusion, and may be useful to someone.