J2SE5 for MacOs

surprise surprise, my MacOs woke up, talked to his friends at Apple and wants to download Java J2SE 5.0 release 4.

Does that implicate that Java 1.5 is now the standard VM on MacOS or is this only because I have installed the JDK 1.5? Whatever the reason is, if Java 1.5 is available, there are no reasons to stick to 1.4 for projects like aperture or Nepomuk.

looking into a better future,