There are a few good options for debugging. Trigger has the Catalyst debugging tool which brings a Webkit-style debugging interface to mobile development (https://trigger.io/catalyst/). You can run apps in the simulator and on connected devices then remotely view the DOM and debug Javascript in the web interface.

Trigger can also generate web apps (http://current-docs.trigger.io/web/index.html), so when not using native phone functionality (e.g. the camera) you might like to debug with a web app and use Chrome/Firefox developer tools in your desktop browser.

With liberal use of forge.logging (http://current-docs.trigger.io/api/logging.html) these techniques should be useful! I think you'll find things have progressed since you last used cross-platform frameworks. Any questions do drop us a line on [email protected].