CainIV - 4:39 am on Jan 31, 2012 (gmt 0)
Hi Robert, we see this too.
I agree the phenomenon has been going on for quite some time, probably almost 2 years.
We have noticed that rich content inner pages that mirror the same theme as the home on a well-linked website can show up in the same, worse or even better positions than that homepage, even when they have very few external inbound links.
This led me to wonder whether or not this was a case of Google selecting which of the two pages on that domain it thought was a better fit for that user query.