A great feature to add to 3d-Coat would be a quick way to make tileable textures using voxel meshes. Then send texture maps to Photoshop. Such maps could include normals, mask, ambient occlusion, spec, cavity and height maps. An example of this could be making bricks wrap around at the edge of the camera view.
Currently, I'm making voxel meshes and exporting a mid range mesh to 3d Studio Max (depending on the texture). Once that is done I use xNormal to get the texture maps to use to in Photoshop. Then in Photoshop, it can take some time to paint the maps to where they are tileable. Saying all that, it would be awesome to be able to jump back and forth between 3d-Coat and Photoshop without worrying if my texture maps will be tileable.
This could help with making detailed textures and cut down on the amount of time in other programs.
Keep up the great work!