Where are all the iPhone/iPod 3.0 hardware accessories?

Back when 3.0 was announced in March, I assumed manufacturers would have developed 3.0 accessories (operating through bluetooth or dock connector) by now, or at least made announcements. I would have at least expected an audio recording interface, so that you would be able to record high quality digital audio through apps like 4track, etc. Or how about an external bluetooth keyboard for entering text? What gives with the lack of products?