Eclipse version 3.7 (codename Indigo) was released on Tuesday, June 22, 2011. It is an integrated development environment (IDE) that has plug-ins supporting development in various programming languages: Java, C, C++, JavaScript, Ruby, Groovy, Scala, PHP, etc. It also includes integration with versioning/source-control repositories like git, Mercurial, and CVS; support for JEE application servers/containers like Apache TomCat; etc. It's what we use for Java development where I work.
Does anyone else use Eclipse?