Here's the thing.. Apple's sharing options suck. They need to do what Android does, and have room for sharing APIs
Twitter is not nearly as important as Facebook. They're integrating it into everything, but honestly, I wouldn't be surprised if most people couldn't care less.
We need (on iOS and OS X) the ability to share from anything. I need to be in my photos and be abGet to instantly share from a drop down menu with Google+, Facebook, and any other services I start using. That's how Android is, and it's brilliant. We don't even need to "share" it. I want the quick option to bring a picture into Evernote, ect. Again, this is something Android does that OS X and iOS needs to borrow from.
Twitter is just... Unimportant
Here's the thing.. Apple's sharing options suck. They need to do what Android does, and have room for sharing APIs
Why twitter integration and no facebook in ML? Facebook has many times the userbase than twitter. I do not understand.
Not on the best terms.
You're right, facebook has more registered users than twitter, but twitter is actually in the spotlight more than facebook, and twitter is growing faster than facebook. So facebook might be on top right now, but apple is looking towards the future. I think google will put its weight behind g+, and apple will focus on twitter (maybe even buy them?) and those will be the two "big ones" that everyone uses.
Facebook jumped the shark a few years back. Now it's just for big advertisers and your mom.
Twitter is where it's at.