I think I understand what you're saying - I don't think it sounds silly, really, I just slightly disagree. I think it's about abstractions and where you draw t

I think I understand what you're saying - I don't think it sounds silly, really, I just slightly disagree. I think it's about abstractions and where you draw the line of 'different thing' - I see 'If you own an iPhone 4s it will play the apps for it until it dies' and 'If you own an Android phone with 4.x on it, it will play the apps for it until it dies' as being equivalent with 'If you own a cd player it will continue to play CDs'. You're blurring the lines between CDs, Vinyl, Cassette, Hi-CD, SACD, DVD, HD-DVD, and BluRay audio as being all entirely unique 'universes', while smooshing all of the smartphone world into one 'universe'. I see the difference between an iPhone 4s and an iPhone 5 as more like CD->DVD: similar, but distinctly different. Sure, lots of content works on both, but then, lots of content doesn't. It's just now, with software-based (primarily) differences, that people even THINK about backwards compatibility/etc. as a feature to offer. CD players didn't offer backwards compat. with vinyl albums, for example (although, this argument might be flawed in that most future optical-disc drives did compat. back to CD). With software, we CAN provide backwards compatibility, and you're argument (if I do understand properly) is that because we can, we probably should. I am torn by that, and can see strong arguments on both sides of the fence.