Hi Jerry,
I took a look at the link you posted. It appear that Apple's Java is based on Sun's standard 1.3 and 1.4 version of java. The JDK (e.g. Java Developer Kit) should be the same on Apple as it is under window, linux, Unix, etc. I assume Apple's claim to imporved java is a result of improvement to their hardware speed and graphic, and any addon products they make available which would not come under the Sun License. I'm I correct in this?