It would be good if there would be a new section in forum, similar to current "Yii-powered Applications" section, but which would include just open source projects, so users could easily find/check Yii based open source software, that they could use for their projects.
good idea 
, some of “Yii-powered Applications” is open source and others are not . so if i want check out the open source one i have to click all projects to find which is open source .
Good idea, I think. There was a wiki page with os applications, as I remember but a sub forum will be handy.