iPad 2 is apparently sold out and there are only limited shipments coming in.
Although this is a high class problem, it is still a problem - there are customers who want to give Apple money but can't because there is no product available. And so, I wonder: did Apple push the launch date of iPad 2 to defuse other tablet threats ahead of being able to produce adequate numbers? Demand doesn't seem much higher than expected (in accordance with analyst estimates). So it can't really have been a surprise to shift 500k-1m units.