Which programming languages are possible on Blackberry?

I may start porting an android application to blackberry in the next weeks.

I have my problems understanding the RIM documentation of blackberry development. But I think I understand that I can develop an off line web application. An Application that runs in some kind of WebView but is written completely in JavaScript. Sadly I can't find anything to confirm this hunch.

Has anybody of you build a Blackberry app that loads a local website into a webview? Is this possible? Are there any tutorials for this?

Every little pointer to further information is apprecia开发者_JAVA百科ted.

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Yes, you can create a "widget" which is an HTML/Javascript application that runs as a native app on the device. See the BlackBerry Developer Center section on Web Development for more information (look for tutorials and videos for "Widgets").