I was wondering if there is a more up to date alternative to libFoundation (which hasn't been updated since 2001) to develop modern cross-platform Obj-C applications.
I don't need appKit features, only Foundation is needed.
I know about GNUStep, but I've only heard bad things about it. The Cocotron seems nice, but doesn't seem like it has proper Linux support at the moment, which is a must.
Have any of you used the above? How did you like it? Do you know any other implementations?