Basically following burr's video:
http://vimeo.com/82204444

• Install JBoss Tools
• Install Cordova/Hybrid stuff
• Create simple hybrid app
• "Run as CordovaSim"
• CordovaSim doesn't show up. There is blank window visible for a second.

Some additional hints:

• Same behaviour on JBDS 7.1 with Cordova and Google Android plugings
• BrowserSim seems to run fine - just opening it by clicking the button on the toolbar.
• Cordova app works fine when deployed to actual android device or android emulator.