According to a config.ini log taken directly from the source of the BioShock PC demo, it appears once and for all this game is coming to PS3.
The file is located at the following filepath for the game:
Program Files/2k Game/Bioshock demo/Content/config.ini
[Console]
Console (XBox360, PS3) specific settings
StreamingDynamicFloatingLimit:
If this is a positive number, then instead of using the fixed per-level
limits, the StreamingDynamic resource will use as much memory as is
available as long as the total memory allocated by the game is less than
the specified number. In other words, StreamingDynamic will grow and
shrink to fit to the available memory instead of being locked to a fixed
budget StreamingDynamicFloatingLimit=500
Clearly 2K Games would be in serious fog if they were to pull out a "no comment" card here, or a typical "this was a mistake," because clearly, all the evidence points to BioShock hitting the PlayStation 3 console in the Spring of 2008, perhaps even sooner.
Keep your eyes on PSU for more BioShock on the PlayStation 3 information. We think you’ll be seeing it soon enough.