TheMadScientist - 12:33 pm on Apr 13, 2011 (gmt 0)
...Matt Cutts And Singhl advocate for noindex only...
Do you have a reference for that? I missed must have missed it ... Could have been in one of the many similar articles I skimmed, but I'd like to see what else I might have missed.
And to reiterate and expand on what P1R said, if you have both the robots.txt will always take precedence, so the pages (often as url only) may be included in the index.