Originally Posted by melgross
Android isn't considered to be "sticky", because other than the cost of the phone, Android users buy almost no apps. Almost of the apps they do get, and it's a lot fewer than iOS users, are free
I think there's more to it than that, platform stickiness due to applications wasn't the primary problem for Apple gaining desktop market-share back in the 90s. The problem was that Windows had a really strong network-effect, and became in effect a natural monopoly.
Mobile doesn't seem to be going the same way, data level compatibility between devices is high - the same music, books, video etc are for the most part available on each. Apps of course are not, but we're unlikely to see a single 'killer app' like Office that makes a particular mobile platform the one you MUST own.
Even if Android does turn out to have some stickiness from the supplied Google Apps, it still doesn't mean that Apple faces an existential threat due to their burgeoning market-share.