Good news regarding Merb slices: the new router allows you to mount a slice directly as: /the-slice-action (previously it had to be /the-slice/something)
On IRC, Nagash came up with an interesing snippet allowing you to easily serve static views (like Django’s generic views) (Merb::Template.template_for is PRIVATE so use it at your own risk) The Core team is investigating simpler/cleaner ways of achieving the same result and a built-in solution should be available in Merb 1.1
Merb 0.9.8 has a new efficient way of dealing with clusters (more news coming soon)
Merb’s new caching system will make it to 1.0
Merb is going into a feature freeze and the team will focus solely on bug fixes and making the Merb experience more pleasant.
A turn key deployment solution is planned for Merb 1.x (deployment recipes plugin)