The general motivation behind it can apply to any kind of software, but it's definitely not fitting for many categories. In desktop applications I usually pref

The general motivation behind it can apply to any kind of software, but it's definitely not fitting for many categories. In desktop applications I usually prefer tools that cover the majority of use-cases and provide an easy way to extend them (the last part is important too, otherwise you end up with the Windows 8 default apps). It doesn't make sense to split up a photo editor's core featureset, but that doesn't mean it's a good idea to just bury it in a pile of features out of the box that only 5% of users care about.