Pallada is making it clear that there is a major whole in the current plugin manager with IDEA. As we make plugin changes to deal with API changes, we have the problem of making updates to plugins for IDEA 4.0.x as well as supporting Pallada.
The solution for some is to add a second copy of their plugin with a slightly different name indicating it is for Pallada. While this works, it is far from ideal. Users of 4.0.x are now starting to see what appears to be double entries for some plugins and may be confused by references to Pallada.
I suggest the plugin manager and plugins.intellij.net be updated such that there is a plugin repository per version of IDEA or the repository is smarter with being able to upload two copies of a plugin that claim to support different versions of IDEA (as specified in the plugin.xml).