Considering CSS sprites were something that dhh mentioned as putting into Rails 3.1, maybe you should see if you can just get that moved into Rails core, before the sprites work starts.
Great suggestion. I presume they'll want to roll their own solution (hopefully taking advantage of existing gems like ruby-yui-compressor and closure-compiler). But I'll open a ticket for it.
> I presume they'll want to roll their own solution
I have yet to contribute to rails-core, but generally, they don't accept feature requests, they only accept patches. Even if you end up replacing the 'back end' of it with something else, maybe your code would give the feature a head start.
