Agreed, 2 in 1 is better, but if this link is any indication BC for PS3 is not going to happen ever.
http://www.psu.com/GamesCom--No-bc-for-PS3-Slim,-says-Koller-News--a007961-p0.php
Speaking to gaming blog Kotaku, the hardware marketing boss commented, "Backwards compatibility is off the table.”








