Sorry bout this but I could not resist anymore

To differentiate censored & uncensored GTAIV discs..

Uncensored


Censored


Thanks to Schattenjeager for additional info

HERE I CUMMM LIBERTY CITYYYY .....

No problem. For my own sanity, here's what I know so far, based off various sources from tha interwebs:

Is GTAIV region locked?:
Only for the Xbox360. PS3 games remain  region-free.

Is GTAIV for the PS3 Censored?
Only for discs in the Australia/New Zealand Region, which IINM is Reg 4. What exactly has been removed has not been disclosed by R* in detail.
Singapore discs apparently fall under Reg.2, according to LYN posters here.

For visual clues as to how to determine which Region your game is, you can refer to Vorchiel's handy guide here/Post #2000.

Is Multiplayer region restricted?:
No one seems to know for sure; none/not enough of us have copies yet to be able to determine this.
Apparently not.

PS3 games are typically region-free, so why all the R1/R2/RX questions?:
In the end, this will factor into DLC purchases. Think about it.

Other miscellaneous questions you might have may have already been answered here.

All this information is accurate at time of posting, but may be subject to change once more of us actually get our hands on the friggin game.