I tried contacting them but they wouldn't me a straight answer.
This made me laugh.
😀
I work for them, and for several years I haven't got a straight answer either when it comes to the books. I trusted them when they said the physics book would be out late 2009 or early 2010, and I shot off my mouth about it. Well after beta test after beta test it was finally out in November 2010. So that's the last time I'll say anything.
To be fair, much of that has to do with one particular flaky editor missing his deadlines.
The general chemistry book got edits done in 2008 (minor changes and typo corrections) and in 2010 (upgrade of the electrochem section and some new questions inserted to replace a few older questions). If their track record is any indication, the big change due at the end of this summer will likely happen in 2012. Just my opinion.
I've never gotten a straight answer about the biology books. IMHO, and it's just an opinion because I haven't analyzed it page-by-page, the biology books have undergone about twenty ultraminor edits over the last six years where maybe one or two pages were changed each time. It's basically the same book, with upgrades and some typos removed.
O chem gets cosmetic changes with each printing (typos corrected), but it's been fairly static since 2006 or so. That's the one I've been asked to look at, so although I don't have any idea when the change will come, that book is going to look like the physics books soon. I think they plan to cut out some pages of organic review and incorporate more biology-related examples.
I don't touch verbal. Used it for studying years ago and haven't touched it since. It underwent a huge change right about the time they switched to the CBT exam.
Physics has been evolving the last year and a half, and the version that came out this past November is just flat out the best MCAT physics book anywhere by a long shot. They seriously got an MCAT review book right.