The application interface itself is pretty simple. When it first loads up you won’t have any interpreters besides shell. If you go into the View menu, select interpreters, and then select Add from the menu under there you can add other interpreters. The interpreters generally come with example scripts, which will show up in the main list view once they’re loaded:

There’s a preferences screen, which covers mostly visual options:

If you long press on a script you have an option to edit it:

The editor that comes up is just a simple but effective textbox, so at least you can edit scripts in place on the device:

And then you can run a script, in this place displaying a toast message over the keyboard when I run the hello world program:

• Handle intents
• Start activities
• Make phone calls
• Send text messages
• Scan bar codes
• Poll location and sensor data
• Use text-to-speech

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    WebView webview = new WebView(this);
    webview.getSettings().setJavaScriptEnabled(true);
    webview.setWebViewClient(new WebViewClient() {
        @Override public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
    	    return true;
    	}
    });
    webview.loadUrl("http://google.com");
    setContentView(webview);
}

However, if you follow a link to an image it downloads instead of opens in the view. That’s the same thing the built in browser does, but wasn’t the behavior I expected. I’ll have to figure out how to handle that a bit better.