When iPhone OS 4 (or should we say iOS4) was shown off a few months back, we had a pretty good demonstration of how Apple’s new, revolutionary mobile advertisement platform was going to work. But, it wouldn’t be an Apple keynote if we didn’t get to see it in action again. Of course, there’s a few more pieces of information in there that are worthy of mention, but we all know Steve Jobs just wanted to show it off again.

Apple are expecting to take 48% of the whole mobile advertising market, and wants developers to try it out. He apparently thinks that it will be a great success for them, too. And, considering the platform, and how many devices it would be on, that’s probably pretty accurate. Apparently they’ve $60m committed for iAds from advertisers in the second half of the year.

As for partners, here’s who you’re looking at (so far): Nissan, Citi, Unileve, AT&T, Chanel, GE, Liberty Mutual, State Farm, Geico, Cambells, Sears, JC Penny, Target, Best Buy, Direct TV, TBS and Disney all onboard! Now, keep in mind that this is all still breaking, so stay tuned to the liveblog to keep updated as it happens. And, we’ll have a video demonstration of iAds soon enough, so stay tuned for that, too.