I need a clone of Ping.fm as follows:

All services in Ping (G+, Facebook, Linkedin, Digg, Stumble, Twitter etc etc)
Posts made to services show as 'Posted using <name of product>'
User signup with username (public displayed)
Ping this script - http://ping.fm/ref/help/
Forget the API and ability to create and send posts within the site itself

How it will work:

On sign up the user adds a Twitter user or RSS feed to feed from, then services (like Ping) for this to feed to. In other words the site merely acts as a middleman between the users Twitter or RSS and the services they are posting to (Facebook etc) rather than using the site to post.

The users Twitter will be shared as it is tweeted, however RSS will show the title / headline plus the link.

The site front page will show all links that have been ‘pinged'. It will be displayed like twitter with links, date posted and who posted it (registered users), or if shared via the ‘ping this' script (non registered) from websites then it will show the URL of the page, the page title and date.

The front page Twitter style ‘stream' will show as a public stream, however if you click on a username it shows all their pings only – much like Twitter.
As well as Twitter and RSS feed pls add email address input too.

To make it easier you can use this script as a base for the site: http://brdcst.it/source