The open standard would be pretty helpful, if not sufficient for both. There even are no open source viewers for DWG files for the time being, so if I'm working

The open standard would be pretty helpful, if not sufficient for both. There even are no open source viewers for DWG files for the time being, so if I'm working on some new tool it is woth nothing to me that DWG is popular, because I can't use it without tons of effort.