Kiwi private messages stopped?

Kiwi is one of the many Twitter clients that have come out on Mac OS X. A client also complete and original, but which is unfortunately no longer actively developed. The developer has released a new beta version that fixes some bugs with Leo, but he does not spend time on its software in the future. The reason is the poor relations with the social network developers. In March, Twitter launched a stir by questioning the value of Twitter clients. Since then, some developers worry a little that their work has been for nothing. A recent change in the Twitter API has forced developers to change their applications under penalty of not to allow access to private messages.
For the developer of Kiwi is the straw that broke the camel: his client no longer manages private messages, he was removed from the Mac App Store and is no longer sold on its site and stop its development. Support will be continued as long as possible for existing customers and bug fixes will be made necessary, but Kiwi is a project stalled.