For anyone interested: I've created a small project setup which enables developers to easily debug and profile OpenLaszlo applications with Flash Builder:
https://github.com/raju-bitter/openlaszlo-flashbuilder-project There's a PDF with a good description of how to set up your application to be able to develop using the normal dev approach for OpenLaszlo, and still have full Flash Builder ActionScript integration. Here's the link to the PDF: https://github.com/raju-bitter/openlaszlo-flashbuilder-project/blob/master/docs/ProfilingOpenLaszloApplicationswithFlashBuilder4.6.pdf?raw=true - Raju
