According to estimates from BusinessWeek, Apple is poised to hold a nicely sized 21% of the mobile ad market share by the end of the year. If this estimate turns out accurate, Apple would be right up there with Google as one of the top two players in this space. While Google purchased AdMob as part of their initiative to own the mobile ad marketplace, Apple’s somewhat recently announced iAd platform has caught steam quickly.

Today, Apple CEO announced “iAds,” part of iPhone OS 4; software for developers to make it easier to put ads in their applications. And for the first time while watching an Apple product announcement, I felt sick to my stomach. I don’t mind ads. Ads should exist. They’re a great way to make a program “free” (as in beer) to download. iAds, however, makes me extremely nervous, and has a lot of unanswered questions.

A new report out of Bloomberg is stating Apple may have been in in negotiations with AdMob about purchasing their company weeks before Google acquired them for $750 million. A purchase of AdMob—which makes their money in the mobile advertisement business—by Apple would have furthered the competition currently going on with Google, a company dominating search advertisements.

One of the best and most talked about features of Apple’s iPhone during its release was the full, just-like-your-desktop browser that it uses. This version of Mobile Safari did just what Steve said it would, “revolutionize” the way we see the internet on our phones. That said, Google has realized they can do something interesting with this now, since it is a full HTML browser. And what is it, you ask? Ads. As of this week, AdWords advertisers will now have another campaign-level option to include their ads on both Apple’s iPhone and the G1. What does this mean? Read on to find out.