No you will lose all of them.. if you do have them it will be unplayable but THINK ABOUT THIS!!! once you go 3.70 there is no turning back! Are you willing to give up your cfw?
If so update
If not try to get another console (cfw is worth keeping)
But if you are tired of cfw... then just update but you have been warned
2/16/12 Being an active member on this site was cool hell I enjoyed it. But now I gotta move on from the PS3 scene hopefully in the future things will get better for the scene and I wish the devs good luck. So in this sig Goodbye fellow members I wish you all the best!