To play a bit of Devil's advocate... Most of the popular apps fall under the free API access, don't they? If so, isn't it unfair for everyone to say how users need to jump ship and find an alternative? I mean, Twitter is giving you API access for one of the most utilized services on the Internet... for free. You just have to make sure your app follows some guidelines.
People aren't building apps for fun. They're trying to build a business. No one in their right mind is going to invest in a business that's built in an area that can be bulldozed at any moment, and that's what twitter's platform is.
For developers, twitter is now officially a burning platform.
Unless I've misinterpreted this?