Move over Call of Duty 4 and Halo 3.  Grand Theft Auto IV is now the #1 game on XBOX Live (thanks Major Nelson).  For the first time, Halo moves to #3 (the lowest a Halo title has ever been).

CoD4 and Halo 3 have been and will remain at the top of the XBOX Live leaderboards for some time to come because they offer a proven multiplayer experience with high replay value.  Halo 2 is still the #1 original XBOX title on XBOX Live.  I don’t recall it at anytime being #2 on that list.

Multiplayer modes in GTA IV is new to the series.  Will gamers find replay value in GTA IV?  Will it play much like the way Bioshock did?  Amazing story.  But not much replay value.

I’m guessing that in 4-8 weeks after the newness of GTA IV has worn off, CoD4 and Halo 3 will be ahead of GTA IV in the number of unique users on XBOX Live.

Or have I totally under estimated the GTA IV following?  A huge hit on the PlayStation consoles, does GTA have some kind of a massive cult following that’s going to keep playing this game until the end of the year?

ShackNews is reporting that Wideload Games’ Hail to the Chimp, originally announced for a May release, is slightly delayed until June 24 so that some final finishing touches can be put on the game. Chimp is to be released on Xbox 360 and PlayStation 3, and is priced at an affordable $40.