Hi. Nice to meet you, and thank you for your nice message!
Yes, version 1.1 is the latest stable version, recommended for production environment. Version 1.2 Beta has just been released, but it is for testing and evaluation purposes only.
Yes, you can also use it in commercial environments.
We do provide professional support. See our
offering at the FengOffice Website.
We are actively looking for people and companies to partner for distribution and promotion of OpenGoo/FengOffice. You can definitely count with our help and support.
Tag management is currently being improved (Poor thing has been neglected for too long now). Check out version 1.2 Beta for some of the improvements.