Thanks for all the suggestions. What kind of mount does the Topeak Road Morph come with? Is it something that can fit on water bottle mounts or does it have it's own system that I would have to strap elsewhere? I have a 47cm WSD frame, so I don't want anything too huge or something that is difficult to mount.

Anyone know if the smaller version mentioned by newfsmith is available and if so, what it's called?

I usually ride with a friend (who has a CO2 pump) or with a group. I always carry a patch kit, tire levers and a pump, but I have never had to use the pump. Good think I checked it out at home and not out on the road!