This question comes from the August 15 webcast, Building Funcitonal Hybrid Apps for the iPhone and Android:

Is this development just secure enough for a regular application like a game, or could it work for a confidencial information? like a bank application   or a business private application?

Worklight is developed with Security in mind. Here's an example of a Worklight application built by a big bank: 

itunes.apple.com/us/app/ing-direct/id329...

Feel free to ask for more details or other questions in our public forum, it's heavily monitored by our developers. Here's the link: http://www.ibm.com/developerworks/forums/category.jspa?categoryID=512