datamapper_fu
I have been discussing the potential of developing a datamapper-native attachment_fu port in the #merb and #datamapper channels. The response seems to be in agreement that this type of plugin needs to be developed, as building an ORM agnostic plugin of this type would add user configuration and confusion. Also in the spirit of Merb, “no code is faster than no code”. This may spawn other merb plugins under the _fu tag, but we have to start somewhere! Its also being discussed as to what happens with attachmerb_fu, and it seems to be heading down the AR-native route.
The project has its initial commit and encourage you to come contribute either through testing or actual code.