This action simply cross posts a draft to both App.net and Twitter.
Import the following URL into Drafts (just follow the link). Then run the action on a draft you have written to have it cross posted to the App.net and Twitter acounts that you have connected to Drafts.
Important: As is, this action will attempt to post to my Twitter account, @ajguyot. Make sure that after you import the action, you edit the URL in Drafts' settings and change "ajguyot" to whatever your Twitter username is.