So an iPad Mini will be able to support split screen, but my freaking $1,000 iPad Air that's less than 2 1/2 yrs old can't? What a crock of s. Sorry Apple but I'm not playing your game, if you gimp my iPad Air, I'm NOT buying your new iPad. I'll either get a 128 Surface or a cheap Macbook (but I probably wouldn't get that because I loathe rewarding bad/sleazy behavior).
Not defending Apple here, but what if that split screen stuff really needs 2 Gb internal ram? What if they do decide to make it available on older devices and it is totally unusable as a consequence of the need for more than 1 Gb internal ram?
Most jailbroken functions of the sort actually perform really bad, which supports the tactic of making new functions only available on devices -1 generation.