It looks like Pioneer just released a slim new class D receiver - VSX-S510 . I haven't seen too much on this. It looks like it's only available in Europe and Asia, not America. I've been a happy Panasonic SA-XR50 owner for many years now and love slim class D amps. I've recently been looking to upgrade to HDMI, and this one has it (plus AirPlay and a bunch of other new features). Anyone have any opinion on this receiver?