Here is one I took of Oslo, Norway with the new 5D mk III and the 16-35II (22 pic. shot vertically @16mm)
I stitched it in photoshop cs5. I have never needed a tripod for these shots, as photoshop does a wonderful job of putting them together, IMHO.
I've never tried to do any panoramic shots like that. Is it hard to get them to line up and look perfect? I assume you need a tripod for this?