I would have loved the concept of being able to log in easier to a number of different websites. As someone who runs a dozen for different clients it would save me some time and effort even if it was only logging in to update the frequent wordpress versions.

However i also understand the issue of sharing passwords on my iPhone. Although I have never ever lost a phone in last 12 years of using them the idea of my phone getting into the wrong hands frightens me.

the new iphone being launched later this month with fingerprint login will go some way towards reducing my fears but I need to get to understand how that works in practice before making my mind.

Maybe going for it BUT not yet.