Does anyone use MIZI Mobile Linux (Prizm based cellphone, like Samsung MITs-i519), how's the performance and usability compared to our EZX platform?

http://www.mizi.com/content/view/5/6/
http://www.mizi.com/developer/mz20/

And, recently I stumbled across this page :

http://www.mizi.com/developer/mz20/tools_list.htm

I wanna ask, can these tools used to help us make ezx application?

Thanks.