I just released Typo 2.5.7. This is a relatively minor upgrade over 2.5.6, but it adds two important features:

1. Support for Rails 0.14.x. Due to one little change, Typo 2.5.6 worked fine with Postgres and the new Rails, but MySQL failed horribly. This should now be fixed.
2. Support for overriding views from within themes. The theme contest folks really want this, and it’s been available in the trunk for months, so I backported it.