Developer friendly

I have a feeling that there is an aspect of GNU/Linux, *BSD and other open source development that should have more attention.
In recent years Linux has gone a long way, improving both in server and desktop applications. however in order to surpass it's competitors, it needs to satisfy the needs of both users and the developers.
There are a lot of great tools for developers in open source community, but there is almost no open source rapid development tools present.
One of the most valuable resources that a developer has is his time. This is the reason why many developers prefer Windows as a development platform. Open source community desperately needs something like the Visual Studio in order to bring the developers to their side.
Open source must become developer friendly again.