Ruby on Rails 0.13

Ruby on Rails has just had another milestone release.. 0.13. This framework has been amazing since early on, and just keeps getting better.

The framework is... how web development should be. Less typing, more structure, more consistency and reusability, advanced integrated client javascript, templating, ORM, mailing, scaffolding, simplicity.

Its the most appropriate framework for pretty much all standard web development.

People harp on about the ORM functionality (wah wah its not hibernate)... this is not rails.

Rails is the sum of its parts, and so far every part is brilliant.

I'd like some real world examples of what it cant do, or is inappropriate for.
REAL WORLD.

You wont know your framework sucks, until you try something thats good! That something is Ruby on Rails