Google’s done it. Facebook’s done it. And now Twitter is in on the act, to allow you to sign in to other applications using your Twitter ID and password.
The Twitter API Wiki was updated with this news yesterday, and describes how OAuth is used.
Twitter could potentially build on this service to offer an interface with its API in the same way that Google and Facebook’s ‘Connect’ services do – but critical to this will be the issue of security, which has been an Achilles Heel for Twitter in the past, and the recent worm attack will have done little to enhance confidence in the service.