According to CVG, UK mag PSM3's published the first BioShock PS3 review, which claims the game "plays identically" to its 360 counterpart.
The 93 percent review is summed up thus:
If you're a lucky multi-format owner who favours visuals over some extra puzzle levels, you're probably better off with 360's original. Otherwise, you needn't panic: Rapture shines on every format and plays identically.
Overall As fresh today as it ever was, BioShock's an essential PS3 play.
More through the link.