I was actually looking for my post from a while ago on IR and can't find it (argh - that's what happens to you when you have 10K of them).
Anyway, it is still not going to be clear for at least 1 more year (until the GPA of the second year graduating class is released) and other info is gathered to create a correlation analysis and provide backup for schools as to how to use the IR. so I don't think it is important at this point in time.... keep in mind that for the next 3+ years, people can still submit their pre-June 2012 scores that do not even have an IR score.
Founder of GMAT Club
Just starting out with GMAT? Start here... | Want to know your GMAT Score? Try GMAT Score Estimator
Need GMAT Book Recommendations? Best GMAT Books
Co-author of the GMAT Club tests