[Matt 'Maverick' Watts]

First, Tippmann has never made anything out of pot metal. Ever. They have made some of the most durable, reliable markers in paintball. Ever. The #1 selling marker brand in the World. Period. Yes, a DM or a PE of a Bob Long are lighter, but they are also based on a different style of play. After 31 years in paintball, and having owned markers from every company that has made them, I can say that Tippmann makes some seriously reliable, beefy markers designed to take a pounding.
Second, no experience with hpa? Every Tippmann marker was and has been tested to work with hpa, and also CO2. The phenom, crossover and XVR prefer hpa over CO2, but they can run on both.

Now, as far as the airsoft gun goes:
It will take aeg magazines when it it hooked up to a remote line set up.
Yes, it can handle using hpa or co2 in the remote line configuration. Just as with a paintball marker switching between the 2 will more than likely require some necessary velocity adjustments as both gases perform differently.

To suggest that this is going to be crap before you even see it, hold it, or shoot it makes me wonder about your anger towards the company. Patience. Wait. When it comes out in June and you get to try one, THEN comment on what you think about it. Until then, you should be excited that a new system is coming.