Oracle has released version 3.2 (.20.09) of their SQL Developer tool. They're still releasing RPMs, so developers on Debian-based systems need to use alien to install it on their machines. We have done that, and have made this available for others to use as well. What makes this particular release of SQL Developer so great is that it now runs reliably under Java 1.7 - no more keeping a 1.6 JDK floating around just for SQL Developer!
The .deb package can be downloaded here, or you can browse current and previously posted packages in the “SQL Developer” directory of the Bit Badger Solutions Software Repository.