Master dDo for Photoshop with this complete overview by Wiktor Ohman.
Halo Speed Paint
Watch an impressive speed painting of Halo's Master Chief created in Photoshop with a Wacom Intuos4.
Nondestructive Image Flattening and Reflection Removal
James Busby demonstrates nondestructive image flattening and reflection removal in Photoshop.
nDo2 - Announcement + Open Beta
nDo2 has been announced, so prepare to unleash raw normal mapping power inside Photoshop.