It has been said several times in this forum that a GUI for generating queries will be implemented with YOGMAX. A forms generator has not been mentioned as far as I know.
All that stuff should be Open Source in my opinion and should be available as a plugin for any program – such as Webyog, OpenOffice, MySQL Query Browser (ridiculous program!) and … and …
It's waste to have a dozen developer groups working on that and only each to produce a 75 % solution …. I've come across a few before reading about the one that you link to. I've been checking your link, and I'd prefer using Access as a frontend for MySQL through ODBC … It's a better GUI and though ACCESS is not particularly fast, it's faster than this one!