2Nicolas:
As a start-up company we use technologies in which we are proficient. I can agree that asp isn’t the best choice for OS project. But on the road map we have other technologies/platforms in mind. So, it’s just the beginning. We released our software only 2 month ago and of course we plan to build community for open-source software developers. Unfortunately we are limited in resources and were not able to release specs&guides along with the source code. So…any help is pretty welcome

2lexa:
What do you mean by saying “fengoffice is far more open”? First, look at their description of open source at http://www.fengoffice.com/web/community/why-is-open-source.php. Since when “open source”=”free software”? How can the true open-source software company write such inaccurate phrases… And second, it’s not a free software – it has plans.
But as they say everyone has his own taste and you are free to choose from an array of available services. I’m really glad that fengoffice suits you. But why give negative review to TeamLab software even not trying it?

FengOffice is a cool one too (At WRD: http://www.webresourcesdepot.com/open-source-web-office-opengoo/)