anyone know if it is possible to get HD in a Z1

You can buy the DEI universal one and run it in through the A/V input.

I have heard that Pioneer will sell one soon though, but who knows when that could be

I've inquired about an HD Radio Tuner directly to Pioneer. Their response was that they don't have any plans to introduce one. I really wish they would. I've got a JVC HD Radion in my boat and the sound quality is amazing!

I also wish that Pioneer would introduce an HDTV Tuner for the Z1/Z2.