The Twitter ecosystem has grown quite a bit, and a lot of users are relying on the API (and third party software) nowadays.
Small API changes can break these applications, and could possibly affect thousands of Twitter users. I understand that the API will need to evolve - but can you please consider a versioning policy similar to: http://www.google.com/support/adwordsapi/bin/answer.py?answer=33152&topic=8400 Thanks.
