[quote]How does one develop for Webstart?
[/quote]
You don’t. It’s a 30 second process you only have to do once, and then it works for all future versions of your game without you changing anything.
Basically, it’s just like creating a webpage that has a download link to wherever your game is on the web. But the webpage is designed for Java’s “webstart” code to load, and contains extra info - like, where it can automatically download any libraries it needs, without having to bother the user.
If you look in the Wiki for Kev’s tutorial, or follow the link to it from the bottom of the “submit” page on www.grexengine.com/sections/externalgames/, you’ll find he’s even given you source code that you can just copy and paste, make a few tweaks, and you’re done.
No more work, everytime you upload a new version of your game, just use the same filename, and everything works a treat.
Oh, you do have to store your game as a JAR file (which is just a special ZIP), but you should do that anyway, and it only takes 1 minute to learn how to make JAR’s. And Kev even tells you how to at the start of his tutorial.