In terms of general use for java applets, be forewarned that I have found the following...

• Doesn't seem to work with archived (jar) applets when loading gappletviewer with a url. Some kind of classpath issue???
• Does not seem to work with proxies... doesn't seem to use http_proxy.
• I've said this before, but performance is lacking. This is probably more JVM related.
• It warns that some security features are not implemented, so it may be dangerous to use with malicous applets.

As for browser support, someone could probably get some kind of greasemonkey script working, but there is also a plugin called gcjwebplugin that is supposed to be a firefox plugin that uses gappletviewer to run applets embedded in the browser. However, to me this would just create more overhead further decreasing perfromance.

Finally, it looks like the version of gappletviewer and maybe even gnu classpath that is being used in Jalimo may be a little old. I wonder if we got a newer port if it would work better. Anyway, I would be interested in hearing the progress of Sun's PhoneME for OS2008 if anyone has any info. I think it would be worth a try. Along those same lines, has anyone tried using SUN's appletviewer in PhoneME on OS2007?