Everyone else said its fine and they haven't had issues.
Also, those who were able to compare said that noted no differences.. don't worry about it, and if there is a glitch, it's not like it can't be patched.
How would we know? The game isn't officially released yet. You want to hear unsubstantiated rumors from people who may or may not have legit copies? Gee, that should go well...
All Beth games are glitchy so I expect Skyrim to be the same. Although I will say that the PS3 version should be improved from what it was in the past.
.... Read the other PS3 threads... But since you won't I suppose I will go through this for the FOURTH time. The PS3 runs perfectly fine according to my friend as well as a ton of people on the internet, gamestop employees and etc have confirmed it is exactly like the 360 version. Chances are people who are playing the laggy versions have older PS3 consoles(Fat ones/Ones that don't have as much room) therefore if you have a newer one it will probably run great. It is the only way to explain this.
Neogaf PS3 users are reporting the game runs smooth - some stuttering here and there (but that's to be expected, given the size of the game world) but nothing game breaking.