For Christmas, knowing that I am a total gadget geek, my oldest son and his girlfriend got me these two lens adapters for my blackberry. I just did some testing with them, and they actually work pretty good. Pics posted to give you a sense of what these do.
And yes -- I do actually have my very own Cool Wall.
Original picture -- OK, so I didn't let the camera focus first -- I was in a rush to do some comparison shooting.
180° fisheye -- great field of view.
Wide angle.
Macro - that's right, I pushed my face right up to the wall to get this --- actually quite interesting results.