I really like my P1, very small, long play time and it drives my T1!
What I worry about P2 is the use of AMOLED, I heard OLED has a short life and the green OLED dies fast. The colors will screw up in a few years. I wish they can use IPS screen instead. P2 seems like larger than P1 as well. Don't know how much it weights.
For SQ, I hope it is more resolving than DX200. Can't wait to audit one.
I'd like to try it as well. After listening to the LPG Diana Edition for a brief moment. I extremely impressed and wanted to buy something like that, but a cheaper alternative.