By Sam N at Lensist.com:

Recently, I went on a trip to Australia with two great Canons: the much-discussed EOS 5D Mark II , and the often-overlooked PowerShot SD880IS... What the SD series cameras do have, is TRUE pocketability. I've seen forum posters saying they can fit an E-P1 with 17mm pancake lens in their pants pocket. I don't know what kind of MC Hammer pants these people wear, but that sounds silly.