cache_money for Rails 3

I've used various forks (mostly the ngmoco fork) of Nick Kallen's excellent cache_money for several Rails 2.3 based project, but we're now making the leap to Rails 3 which, thanks to the introduction of ActiveRelation, does not work with the popular forks of cache_money.

Is there a fork of cache_money, or an equivalent write-through cache, that is compatible with Rails 3 ?