nomis5 - 8:11 am on Nov 16, 2012 (gmt 0)
Does your mobile site have a different URL, or is it all done invisibly behind the scenes? Can you put together a custom search and see if you get both versions of your site on the same SERP at the same time?
The mobile is a .mobi, the main site is .co.uk so they are definitely separate. They are also designed differently although the content in general is the same.
I can never get both versions of the sites in the SERPS at the same time. Google appears to understand very clearly now that the .mobi is a mobile version of the .co.uk. I use the link rel alternate and link rel canonical tags on all pages so the G knows about the relationship between the two sites.
I also monitor a few other sites which have either separate mobile sites or sub domains and it seems clear that G is using information from the main site only for both sets of SERPS - formatting and the positions in the SERPS. Has anyone ever found a site that appears in the mobile SERPS differently to the position in the normal SERPS?
I also have a couple of other sites of my own with sub-domain versions for mobile and the same applies.
I'll check out the logs of the sites to see if both bots are accessing them but I'm not sure what that would add to working out exactly what the G mobile bot is doing with the information it is harvesting.