I'm on the 4/8 list, and just received .3975 BTC when I should have received around .60 BTC at the rate it was at when I made the transaction.

From my post about an hour ago:
Paying $96.01 USD (after bitinstant fee) at 21:00 GMT on 4/8/13 when the price was around $160/BTC should have gotten me around 0.6 BTC