I'm sticking with my September/October 09 (fall) prediction I made last week or so. I see no reason for the Pandora to be rushed out over the summer, so I am betting on the fall. NOW, there is one other consideration. I would really think that the OP team wants the 2nd batch available for Xmas 09 and so that could possibly cause an early release of the first run. IOW, they might really push to get everything finalized so they can order several thousand of them for the xmas rush. I would imagine that the order has to be in by august to get them by November... So you could see an early August release. If you do, the 2d batch should be avail for xmas.
That's my prediction. Since I didn't pre-order I have no level of commitment.
Chris