Charlie - Right now, Charlie is on spring break. That means he won't be anywhere near his art software, therefore, we won't be seeing any sprites or 3D models. Hopefully he will design some robots on paper while he's at home :-)
Justin - Justin claims to have some tiles done... send em to me dude! He has also suggested creating the buildings in 3D... I was against this at first, but if it can be done well with a cartoony feel then I think it may work. Everything will still be handled in 2D, but the images themselves will be constructed using 3D tools. It's worth a shot!
Jay - Jay has completed a few tiles. We're still trying to find the look we want for the map, so it may take a little while the perfect tiles.