If that means updates and security patches in a timely manner, and a roadmap for support for older devices, then that's good, surely???
And I say this running my XPeria S with Android 4.1.1 and my Motorola Xoom on 4.1, with my wife's Samsung S4 Mini running some 4.1 or 4.2 (and no notification light, it's stupid). Let's hope nobody finds out where my devices are on the Internet because they're likely full of security holes that will never ever be plugged.