I’m just as disappointed about this as everyone else. How can Twitter just ‘retire’ 1.0 API? What ever happened to backwards compatibility? All those applications and developers who are working with 1.0 API will now have to stress and refactor their code to make it work with the next level API.
Twitter should take an example of Google. They have 3 API versions and all of them are still working for backwards-compatability’s sake.
Anyway, whoever can coop with the liability of Twitter’s client-side widgets (bad liability is one of the reasons why I’m using API’s) can create a widget here:
https://twitter.com/settings/widgets/new/user