I just got back from the shops and checked out the nuvi 3590 that they had there. It had the 2012.10 maps loaded on it, so I tested out the voice command and "Find Address"... etc... worked on it.

So there are definately ASR2 files not publicly available on the forums. I wonder if anyone out there with 34xx/35xx devices, could share their ASR files from their nuvi.