Well, I've watched Ray Mears rub two sticks together for 30 mins and he still found it tough to get a fire going by friction...
My point through my posts is that you need to ignite something for the O2 to make any difference. So, unless your match/cigarette/spark touches something combustable, nothing is going to go up in flames other than the things already burning. You could put your cigarette inside your O2-filled DS - just don't drop it!!!
In the spirit of experimentation, I have made the following; please note, no divers or camels were hurt in the making of this movie.
www.southwestmafia.com/burnbabyburn.wmv