Yes, its true!
There is no java 1.6 available from apple's developer site
Although Java 1.6 is almost one year old 8-(
But there is a developer version
, which is from September 06. A free registration is required.
Now, I found German installation instructions for the new java 1.6 on an IT-site
me if I should translate it into English.
Another solution would be to download an up to date linux like Knoppix
and install the linux java 1.6