I think the murse (man-purse) phenomenon in North America is pretty conservative. Most of the time, if you do see a manpurse, it's of the Vuitton pochette gange type, sling around back small sac. I think it's great for going out for errands and the such.
http://www.insidemybag.com has a great set of man-bags sent in by a reader, scroll down and look at the labelled Louis Vuitton pictures. I think whomever sent it in definitely has style and taste !