So I've been shooting the E-PL5 for the last several weeks and while I didn't expect E-M5 level IBIS, I was pleasantly surprised that it works quite effectively. Anyways, several areas where I found the E-PL5 doesn't quite match the E-M5 in terms of stabilization: at extreme low shutter speeds (below 1/15th), stabilizing long primes (the 75mm 1.8 just works better on the E-M5) and being less effective when shooting continuous burst. I found the sweet spot for the E-PL5 (and probably E-PM2) IBIS is in the shorter focal lengths while being shot on single shot burst. The E-PL5 does have a setting where IBIS is active in continuous burst, but it just doesn't seem to be that effective. Working within those boundaries of hardware yield the best results for me. Anyways, just wanted to share my findings if anyone is interested. Feedback welcomed!