I noticed that too with some of the Z2 listings. I believe that they are listed as Z1 Compacts because eBay hasn't been updated to include the Z2 as part of their cell phone database. I wasn't able to find it in there myself.
I'm not sure what the deal is with his shipping date. It was originally April 7th, but he keeps moving it back. Now, I'm not sure if that means that he is shipping phones in stages, i.e. if you ordered on 4/17, your phone ships on 4/30, but if you order today, your phone ships on 5/10. It could also be that ALL of his orders are pushed back until 5/10. I'm not sure. Has anyone received phones from him based on the feedback you see?
The other, more expensive sellers, have them in hand now.