You guys are going to have a field day with this one. But in the interest of letting the truth out...
I found this on a website for "The American presidency Project" at the University of California, Santa Barbara.
http://www.presidency.ucsb.edu/news_conferences.php
It defaults to 2009 but shows something that one can't help but notice.
You see a huge list of foreign news conferences. Ones that are listed simply as "The President's News Conference" (and don't have something after it explaining the wher or 'with whom' that seem to go with the foreign ones) number a total of 5 (just noticed one was listed as being in Pittsburgh), possibly 6 as one is listed with the Iraqi President but doesn't say where. Overall he missed the entire month of May 2009. There's plenty of other interesting stuff there.
However, for 2010, I see 4 news conferences listed. Looking at the transcripts for the 4/13/10 entry, I see plenty of questions asked. In fact, for all the news conferences (2/9, 3/30, 4/8 & 4/13) I looked at the transcripts and see that questions were asked.
So what's with the escalating count of days without a news conference?