there is no form generator in devtools at the moment, unfortunately. You have to do it by hand, or you can make your own if you wish :)
There is a Scaffold component of Phalcon (web) tools. It works just as desired. It will create full Model - View and Controller logic. On view you'll find form with required fields etc.
@stamster it passed a month and a half since this question was answered. No point to revive old topics for nothing. The webtools will generate MVC logic, but no Form logic.
Well, the topic was left without answer. It's better to have some solution at least, so other folks coming from search engines will have some idea about the topic they obviously searched for...