I've been using IFTTT to syndicate my Twitter posts to App.net. Guess now I'll have to default to App.net and syndicate to Twitter instead. Say goodbye to my ad revenue, Twitter.
For those who didn't shell out for App.net, you can also syndicate to Twitter from the completely open rstat.us, which also (for now) allows you to sign in with your Twitter account, so it takes five seconds to set up. https://rstat.us
No personal connection to rstat.us, just think it's a cool remedy for Twitter's new iron-fist policies.