It would be great if Omniture could collect the oq= parameter from the referer string passed over from Google. oq= shows what the user typed into the box, as opposed to q= which shows the search query Google returned results for.
ideally, I'd love to look at a keyword report, click on one specific keyword, and then see all of the oq= variations that are associated with that keyword.
Also, it might be useful to just show all the oq= variations in their own report.