JaikuEngine released as an open source project

In 2007, Google acquired Jaiku. I have an there, but I don’t use actively. I don’t know why, but I just felt that this is not for me.

This month, JaikuEngine was released as an project. It’s available at Google App Engine. Google will not develop Jaiku code base and hand it to the . Is it because Jaiku is not popular — compared to other microblogging like ? Or, wants to stop its because Twitter is more promising?