Relax everyone, Jens is a man of his word. If he says he's busy, it's the truth.
fyi, I know for a fact he spent a lot of time recently fixing a problem in the mach chip for the Buddha Flash Phoenix Edition ZII card (I have one of the fixed cards)

So, you can't say he's not working on Amiga stuff right now. And Individual Computers DOES honor its warranties (same can't be said of even non-Amiga companies).
My guess is he's really busy with Clone-A and has also just released a bunch of stuff for the C64/C128 (some of which is useful to the Amiga). See redrumloa for availability.
So chill out everyone, and good things will come.