Just a few days after the Galaxy Nexus was removed from the Play Store following an injunction in Apple's suit against Samsung. However, as of today, the flagship Android phone is available from the Play Store again. While customers can purchase the device, the site says it won't ship for 2-3 weeks. This is in contrast to the immediate availability the device had prior to the injunction.
Update: And now the site says that the Galaxy Nexus will ship in 1-2 weeks. We're unsure what caused the change, but the net effect is still largely the same: you can't get it immediately, but soon.