A New Declarative Caching Library for Rails

This looks awesome. Transparent, coherent caching based on a very fast backend (Memcache). The main point to remember is coherence: it automatically takes care of data mutation for you, unlike classical Memcache. This is not trivial to implement (I tried).

I wonder (I hope) if this could erase the perceived Rails "can't scale" problem from the public discourse.

Also, does anybody know about a PHP equivalent ? Yeah, I'm doing PHP at my day job and I badly need it.

upmodded for best plugin name ever

But does it work with Merb?

If you use ActiveRecord, it's easy enough to hack, but what's the point of an AR-based Merb app?

It could be extended to work with DataMapper in a straightforward way.