Our policy was so far that all A6 main features should be able run on 1.1/1.3 hardware. This required so far that shadows run on the CPU. Users with not-so-new hardware are grateful for that.

As mentioned, a shadow mapping template is now planned, and I don't even need to get bored for writing it - on the contrary, this would be fun. However I'm having some more issues on my task list at the moment. Shadows are important, but other things are important too. We've recently hired a new programmer - Alexej - and are looking for another one, but I guess I won't have time for the shadow template within the next two months.

I hope this answers your questions.