So you've had an iPad 3, but didn't know how to check and dismiss the background apps? I figure that was routine procedure, just keep it clean for general purposes and speed. It's also a good practice to reboot with a simple 'turn it off and back on again' every week or so, that kept me running error free for years when an app would act buggy with updates, it worked fine with all my iPads over the years.
But as we've now found out, the iPad Air is not behaving the same, and there's nothing 'we' can do to make it run better. The Genius' will tell you anything to get you out of 'their' face, and hope you get another Genius when you come back so they can act just as surprised as the first guy, they know there's a problem but they're not admitting it for some reason.
That's why I had suspected it may have something to do with their iAds or the revenue earning side that was hogging memory or conflicting with iframes and they couldn't resolve it without it costing them and their clients revenue.
Everything revolves around money, not addressing the issue will certainly cost them money so they must have more to lose in attempting to patch the problem right now, they must be looking for a seamless fix.
Anyway, I returned my iPad Air months ago, after the continuous crashing and being unreliable while doing online purchasing, it created a problem so I just gave up. Switched to a Galaxy 10.1 and I haven't had 'any' issues and it's never crashed on me. I like how the iPad works with my other Apple stuff, but I did get a new Samsung TV and they work together well, and now I'm checking out their phones as well.
I still like to check-in here to see if there's been any progress over the past few months, and it doesn't look like Apple has even admit there's a problem yet, so I don't expect they're even close to a solution.