But I think this version is not the same as Android Studio community edition.

You're right, it isn't.

This post[1] from JetBrains helped clear the situation up for me.

[1]: http://blog.jetbrains.com/blog/2013/05/15/intellij-idea-is-t...

If you switch the preview released today[1], it's nearly the same as Intellij (even the build numbers almost line up at 130.xx). I just prefer the Intellij preview for some of the features one cannot get in the Android focused IDE Google previewed.

[1] http://blogs.jetbrains.com/idea/2013/05/intellij-idea-13-ear...

Obviously, IntelliJ Ultimate edition is a superset of most JetBrain products.