I am still seeing Tweets being posted “from API” and I can not see how this is possible using OAuth on Twitter.
Basic authentication was to be turned off and only applications using OAuth should be working as of August 31, 2010.
A Twitter Application using OAuth has to have a name, and this name is what will show in the “from” portion of a Tweet.
When using Basic Authentication the Tweet would show “from API” unless you set the “from” explicitly.
So, is Basic Authentication still working with Twitter?