Apple's online store has been updated:
iBooks:
$999, 700MHz, 12.1", 16MB ATI 7500
$1299, 800MHz, 12.1", 32MB ATI 7500
$1599, 800MHz, 14.1", 32MB ATI 7500
Powerbooks:
$2299, 867MHz, Combo Drive, Radeon 9000
$2799, 1GHz, Combo Drive, Radeon 9000
$2999, 1GHz, SuperDrive, Radeon 9000
iBooks:
$999, 700MHz, 12.1", 16MB ATI 7500
$1299, 800MHz, 12.1", 32MB ATI 7500
$1599, 800MHz, 14.1", 32MB ATI 7500
Powerbooks:
$2299, 867MHz, Combo Drive, Radeon 9000
$2799, 1GHz, Combo Drive, Radeon 9000
$2999, 1GHz, SuperDrive, Radeon 9000