yes. i guess more than a half of users.
also, even if they could, they don't do that because they usually use warehouse application, obviously.

and warehouse does not install that rpm.
and it does not suggest to upgrade the program.
and when user upgrades the system, he just left with the cameraplus application which does not run. he has no clue why. i also was left like that, and i was thinking, that if there were update of cameraplus which solves the problem, warehouse had to suggest it in updates.