The answer is - Yup! B and Y class fares earn 1.5 EQP per EQM, along with J and F cabin fares from I to F. Miles earned should theoretically be the miles flown and your 100% bonus, but on occasion I have received an additional bonus. I am not sure if this is the difference between a common YxxUP and YUPP or just a computer glitch, but for some reason I wasn't motivated to call and inquire.
Added later: Class of Service bonus miles are NOT guaranteed with YUP fares - though some of us have received them, it can be so capricious as receiving them one way, not the other. Please read the complete thread for more on this issue...