It isn’t fatal, but it isn’t looking good for my WordPress Plugin, Twitter Digest. Because of Twitter’s requirement for authentication, even for publicly available data, it won’t be easy for Twitter Digest to access v1.1 of the Twitter API. v1.0 was deprecated this past week, so no digests can be produced anymore. I’m trying to find a work-around, but not sure if there is one. You can follow the discussion thread on the Twitter forums, assuming anyone answers my inquiry.
The relevant API docs are here