User Experience Vs. Engagement Experience

No code snippets, no downloads, no "how you can do XYZ better"; just a straight-up reminder that, at the end of the day, it boils down to the experience your user gets out of using your product and using it to engage with others.

http://blogs.hbr.org/schrage/2012/12/dont-confuse-engagement-with-u.html
(WARNING: another iphone vs. android post)