3) Deprecate Actions framework
Commands are powerful,flexible and better than Actions in many different ways. Actions are simple enough and useful if don't need the flexibility in an RCP application. But for a bigger and extensible app like IDE, Commands make sense. Would be lot better if we get rid of Actions and make all the contributions thru Commands.
2) Packaging in Mac
The first impression on Eclipse for a Mac user is that its distributed as zip file - not a dmg. Unzipping it does has a Eclipse.app, but it has no features of a Mac Application. Packing it as a complete .app would be a great thing (and giving the ability to pack RCP apps in a similar way) A non-Mac user will have no idea of why/how useful this feature is, and so they don't really care about it :-(
1) PDE Custom Attribute
The custom attribute in the Manifest editor is a boon to every plug-in developer. It opens up a number of opportunities. The two images are might show off what is possible:
Thats just my wish list. Whats yours?