Came across this today on one of the sites I recruit on, mw3forum.com and thought I'd share this with everyone.
Anyone who has prestiged can attest to the fact that it was solely for the fact that it meant you climbed to the next level (possibly another custom class slot)..and that was it. Now apparently with MW3, it seems as though you can earn "Prestige Tokens" that will allow you to get actual rewards other than just custom slot rewards.
I believe the total number of levels is now at 80 in order to prestige, meaning it will be even tougher to get through all the levels (I believe COD 4 and MW2 were at 70).
Here's the list of what these tokens can unlock:
Extra Custom Class
Reset All Stats
Double XP
Double Weapon XP
Unlock Gear
Challenges 1
Challenges 2
Challenges 3
Title And Emblem 1
Title And Emblem 2
Title And Emblem 3
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