OK its been about 24 hours now that i DL the new edition & im still hanging pretty strong with my memory. Im at 41mb and havent noticed to much of a drop. I've gone down maybe 1 or 2 mb but i have been using my phone alot so seems ok to me. i even broke down and re'DL opera mini, currently praying to the storm gods to play nice with 5.0. Not sure if your running any themes but i know for myself they reak havoc on my memory.
sorry not much help but just thought id let you know how i was making out.