Pleeeeease give up on the backward compatibility - ain't going to happen - can't possibly happen - too many things with no equivalents - too many things it wouldn't know how to fake in earlier versions (and you wouldn't like their choice of fake anyway most likely).
Sometimes people don't seem to really read our replies and digest them. They seem to constantly try to clutch for some some mythical straws, hoping beyond hope that a miracle will sudden appear.
People, this is a logical problem, not a marketing choice.
Put it this way, you can't turn a vulcan gun into a musket or an 2004 BMW into an ox cart. ('course some of us don't see much difference between a Beamer and an ox cart in the first place, but there ya go... heh, heh.)
Ooops, I was not being rude about anyone - just my personal opinion on overpriced hyped up consumer products....
John Richards Sr. Mech. Engr.
Rockwell Collins Flight Dynamics
There are only 10 types of people in the world - those who understand binary and those who don't.