Posterous vs. WordPress

Hey I just stumbled (no pun intended) over Posterous’ FAQ and I must say that their list of features is impressive. The whole automation system is sure to get a lot of work out your hands if properly set-up.

Now. I love WP3.0 and the blogs I create with them, but some of these features (if not all of them) would be a great addition to my WP installation. But probably I can, with the help of some great plugins… But instead of making a post or doing a search for each separate feature, I thought I might list them all here directly and ask fellow WP-users what they think is a worthy option in WP as an opposition to the Posterous features.

So how would you make WP do any of the following?

1) Email handling:
I know you can email a story to wordpress.
But how can you make it do any of the following?

A. Make a gallery of some pictures you send.
B. Automatically convert video to flash or h.264 and crop it to your blog width.
C. Convert a document into a download link to that document.
D. Convert a music file into a mp3 for download and add a flash player.
E. Convert an URL into a flash player if it is a link to Youtube (or any other video site).

2) Networking
How can you integrate WordPress with Social sites so it posts automatically to Facebook and the like the stories you post. And how can you make reactions on those social sites appear as reactions on your own blog?

Hopefully people have some good ideas on this!