A quote from a newsletter from Oracle.
Good news all around! Oracle and Apple announced the OpenJDK project for Mac OS X. Apple will contribute most of the key components, tools and technology required for a Java SE 7 implementation on Mac OS X, including a 32-bit and 64-bit HotSpot-based Java virtual machine, class libraries, a networking stack and the foundation for a new graphical client. OpenJDK will make Apple's Java technology available to open source developers so you can access and contribute to the effort.
Furthermore, the JCP Executive Committe has approved the JSR "quartet" for Java SE 7 and Java SE 8. With this ratification, the Java standard will progress through the JCP while the open source reference implementation will be delivered through the OpenJDK project. See you on OpenJDK!
-The Oracle Technology Network Team (See Team Blog)
This means Java SE 7 woud be available for Mac OS X too and that Apple users will receive Java as soon as other platforms dog. Also the four JSRs for Java SE 7, Java SE 8, Project Coin and Lambda Expressions.