I have a feeling that the Pens and their partners know what they are doing.
Not sure if this is an antitrust issue, so bombarding some poor saps at the AG's office won't do much. If anything, bombard Rendell, Oronato and O'Connor with your thoughts and complaints. If the local leaders realize that they'll lose by not supporting the plan, it might galvanize some shifts of support.
Where are the leaders of the Hill District when you need them? They're the first to complain about things, but I don't see Udin out there campaigning for the Pens. I think they are really dropping the ball too. I know they came out early in favor of the plan.. but now???
That's the amazing part of this all. They live near a potential site for really making an improvement in their area, and the silence is deafening. Maybe they have a legitimate reason for being quiet (i.e., concerns about development driving them out), but I would think that development of this section of the city, along with the planned building on Fifth and Forbes, would be just what those plighted areas have needed for decades now.