Apple announced a profit of $38 million for Q1 - in line with estimates.
During the conference call, the question of iMac sales taking away from PowerMac sales was raised... however, the answer was simply that they felt Pro users would still be compelled by the faster bus, L3 cache, dual processors and expandability of the PowerMac line.
Of note, Apple (Fred Anderson) did report today: "Orders in the first week [of the new iMac] were higher than any other product since the original iMac in terms of first week's orders after the date of announcement"