That's interesting, I would have thought it would have been to evolve core data handling to make it easier to transition around - I've been noticing that as themes with custom post types and built in gewgaws become the norm, it becomes much harder to move from one theme to another - for example I'm working on a site using a theme with 7 custom post types including its own slideshow functionality - it's very nice in many ways for what we want, but basically the two options for moving away from it are rebuilding from scratch or paying the theme makers to fix what we don't like and build in other functionality that we need.

I think this kind of situation is getting more common, and will start hitting the less technical users in a way that could end up undermining the platform's reputation.

But hey, I'm sure posting from a phone is also very important.