The most recent article I found specifically comparing smart phones was "Smart phones," published in the September 2010 issue.
"More Blues for Music" is an article I found on the first page of results from the 1/9/92 issue of "Rolling Stone." I hope to win the gift card :)
P.S.
I just learned that the September 2010 issue is not the one with the sought after article for "best" and "smart phones." This is when the reference interview would come in handy. I see (and originally saw) the articles, "Find the Best Fit" and "Best phones and plans" from Jan 2011, but the descriptions refer to the best plans according to users' desires and the best deals, not strictly a comparison of phones, as I interpretted the "patron's" question.
Me to patron: "Is this what you wanted to find, or are you looking for other information on smart phones?"