Over on their official site, the Irrational Games guys have been dishing up new info on their recently revealed shooter BioShock Infinite, the "10 Things You Should Know About BioShock: Infinite" series concluded today and as promised they've released the first gameplay trailer - a whopping 9 minute demo of the section of the game we were shown at the New York reveal.

Unfortunately for whatever perplexing reason they've released the video as an Xbox Live "exclusive" today and we won't be able to host it officially until tomorrow. Some other sites have been sharing around a transcoded rip of the clip from Xbox Live, but it's pretty lousy quality so if you can't watch it on XBL, we recommend you hold off for a better version because it really doesn't do the game justice.

As for the Ten Things guide, it fleshes out a bunch of different aspects of the game, including topics such as: your companion character Elizabeth, The two factions battling for Columbia's control and more information about the floating city Columbia itself, check it out over at IrrationalGames.com and check back tomorrow when we'll hopefully have a high quality version of the 9 minute demo.