Cross-Platform game

I have a multi-player client-server game that is my first attempt writing a game and writing in Java. I'm an experienced application programmer (C++, .net, etc.). I created a client applet that runs fine on Windows based machines. I didn't do my homework, and found that the applet will not load on an iPad. Any suggestions of how to convert the applet to a fully cross-platform (including iOS) would be much appreciated.

Thanks in advance for your help.

I moved your post to a more appropriate category.

When it comes to apple mobile devices, java is currently not installed. Thus java deployments (apps, applets, etc..) won't run, and I don't see that changing anytime soon (similar situation as flash). Unfortunately I don't know of any alternatives other than writing the app using the iPad/iPhone JDK (C or C++ and/or Objective-C), or somehow adapt the application into javascript