Overall I’ve been very impressed, but the point of this isn’t to do a review of iOS versus Android (specifically 4.3 Jelly Bean). That seems useful to do at some point, but for now I want to talk about “intents”. This is the function that allows one application to pass you to another for a specific action. The place you see this most is in the share intent, which allows you to hit share in any application and have access to all the other apps you have installed that you might want to share that piece of content on.
This, for me, makes Android feel a lot more social than iOS, which requires each application to hard-code in their sharing functionality (except for the Facebook and Twitter integrations which happen at the app level). This is awesome both from a user experience standpoint (I don’t have to copy and paste anything) as well as a developer standpoint (if you’re building apps you don’t have to make decisions on which platforms to put in/leave out and you can easily register your app as a share service and make it available inside other apps).