After using Android for a few days there are various things I like about it that I'd enjoy in iOS too;
'Widget' based home screen - the whole 'folders and app icons' is somewhat stale after all this time. I'd like small app interfaces to allow instant access to things without loading them.
Further customisation in terms of 'Live wallpapers' and placing icons, apps, etc where I want them without being forced into regimented boxes.
Better Bluetooth options - Android has complete control in this instance. Apple feels way too 'safe' and not being able to even receive photos over BT is ridiculous.
That said, I still have my iPad and intend to keep it (at least until there is a full range of tablet apps on Android, and a proper device to use within it) and will obviously see where iOS goes over the next 18 months or so but personally I feel that Apple are just spoon feeding options now because they know how popular there are. It doesn't feel like any innovation is being implemented to me anymore, which is why I've moved away from iPhone this year.
In terms of ecosystem, I absolutely LOVE OSX and can't see me moving to Windows any time soon. I am completely unfamiliar with Linux so I'll stay put - it talks to my iPad and my S3 now fits nicely in between the whole place. Apple TV doesn't really interest me until Apple open up its options to have consumer installed apps etc.