Sharing source between NetBeans and Eclipse

If Eclipse could contain Matisse and manage Java Application Framework projects like NetBeans can then I doubt I'd ever use NetBeans again. There's some work being done out there (mostly by commercial companies) to allow more integration between the two platforms but in the meantime I tend to swap back and forth between the two, copying source files into my Eclipse workspace from my NetBeans projects. This works well but can be annoying.

So I spent some time tring to make NetBeans treat an external source directory as a particular package as I'm sure was possible in the versions of Sun Forte way back. Anyhow, no avail! So I'm back to copying files into my Eclipse workspace with a little script!