JetBrains just announced an open source edition of their popular IntelliJ IDE, under the Apache 2.0 license. As many might know, IntelliJ was one of the last IDE’s that actually cost money. It appears they have adopted an open source plus commerical value add strategy, similar to many companies in the Eclipse ecosystem.
This announcement is pretty surprising; at least to me. It will certainly make it easier to get IntelliJ and hence competitive to Eclipse IDE. However, it might open up opportunities for the two communities to collaborate? What I would love to see is IntelliJ provide great support for Equinox and OSGi; more and better tools make the world a better place. 
Congrats to the JetBrains team for making the big leap. I am positive your decision to go open source will pay off for you in the long-term.
