install jad on PB?

Is it possible to install a jad on PB? For example from google.com/maps

nope, not going to happen. Only download from appworld

Yeah, this was brought up in another thread earlier today (but it was off-topic to the thread so I didn't press the issue much).

I really hope it's not a permanent decision. Somebody else mentioned that it was supposedly permanent, but I didn't check the source of the claim so I dunno. If it does pan out to be true, I wonder if it has anything to do with bigger names like Amazon putting out their own app markets.

The ability to manually install/sideload apps is a major factor for me. At the very least, I hope somebody can engineer a work-around similar to jailbreaking the iphone.