/dev/resolver socket?

[/dev/rob0]

This may be a stupid question. I Googled but didn't find anything 
useful. I also looked through the BIND 9 ARM. It's just curiosity; 
there's no problem I am trying to solve.

Is it possible for BIND named to listen on a Unix socket, the way 
syslogd typically does with /dev/log? Do other nameserver 
implementations do this?

Would there be a benefit to this approach in a high usage situation? 
Would it be a lot of trouble to adapt resolvers to use a socket in 
place of UDP/TCP queries?
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