[_ck_]

wp-super-cache would not be as difficult as you’d imagine to port.

However 0.9 is so fast, it doesn’t even need it in most cases.

That will change with bbPress 1.0 which is twice the size of 0.9 and has many more files. It will need a cache for more active sites. I might try to make the effort in a few months to convert it.