And now, for something completely different. Plugin that can be used to create plugins!
Well, I am almost 100% sure that this is one of a kind plugin, and so far I am unaware of any other similar attempt: to created one base (core) class that implements all the standard code needed for a plugin to work. To use this class, extend it, set parameters through constructor, and just concentrate on writing the actual code for the plugin features. Code is tested onlyt with WordPress 2.5 and WordPress 2.6 and older WP versions will not be suported.
Add to that Wizard that can be used to create skeleton for a plugin. Set a bunch of different parameters that describe plugin features, and in a wizard folder (must have write rights) you get folder for the plugin with all needed files, and all the necessary code for start. Such plugin can be activated in WordPress and it will work immediately. Are you intrigued?
Keep reading: at my blog
WordPress Extend: plugin info