Bumpers are iLuv!
The bumpers are iLuv and they are reported to have screen protectors for front and back of iPhone 4. I'm going entirely on an image here but there was recently a post on Macrumors that talked about this specific case and the image matched exactly that of the one on TiPb. The case, matched from TiPb to Macrumors to iLuv are all the same. So there you have it, iLuv bumpers. Also, for some of you that questioned how similiar it is to the Apple Bumper, it does a have a good amount of differences. For examples, it is shaped entirely different, is softer but not completely flimsy. One good thing about it though is that it keeps the iPhone 4 square edge, as opposed to the Bumper which rounds of every corner. Another interesting point to add, no metal buttons of course, just cutout holes where the buttons would come out. Still haven't recieved it, entirely up to TiPb to notify us of any shipment. The case is called iLuv EDGE. Hope this helps!
Link to Macrumors iLuv Bumper Thread
^^Matches the exact pic on TiPb Case Giveaway Link