Have anyone knowledge of real world vaadin based applications? Would be great to assemble a list on who is using Vaadin.
The biggest enterprise applications made with Vaadin are unfortunately closed source and running in intranet infrastructures, hence not available for the public to review. I don't recall hearing about a collection of references (although, I think one is in the works), this very same question has been asked on the Vaadin forums.
Forum: Vaadin in real application
You can also use a trick to search Vaadin applications on google.
If you (the readers of this thread) are using Vaadin in one of your applications, it would be cool if you could post a comment with a short description and a link.
There seems to be interesting blog post series about using vaadin in BlackBelfFactory.
There has recently been more activity on the Vaadin forums discussing this
We finally launched our showcase list: http://vaadin.com/who-is-using-vaadin
The contents are still very much a work in progress, and new cases are added almost daily.