Twitter Clone
 

I was looking for a Twitter clone tutorial with ruby on rails.
How can I make a RSS stream or a custom RSS Feed of favorites strings.

We are following the same concept of microblogging service of Status.net
Also i am looking for sharing within 140-170 characters same as twitter. Because it is planned to use that for only internal business use.

If it will work fine we would like to build a mobile application for the same.

Any suggestions and feedback are most welcomed.