With support for Java SE 6 officially ended, will SQL Developer fully support Java 7?
In my opinion, this is a major oversight by Oracle. Someone email Larry.
EDIT - With SQL Developer 3.2.2 I'm still getting the "You are attempting to run with Java 1.7.0_25" and "This product may not run correctly."
Yes, it will.
You can use Java7 today if you'd like to, just be sure to be running the latest version of SQL Developer.