Google Vice President of Product Management, Omar Hamoui, has just posted about the changes made this morning to Apple's iOS developer licensing agreement, specifically the section referring to in-app advertising:

Today, Apple updated their iPhone Developer Program License Agreement. Unlike the previous version, these new terms ensure that Apple’s developers have the choice of a variety of advertising solutions (including Google’s and AdMob’s) to earn money and fund their apps. Apple’s new terms will keep in-app advertising on the iPhone open to many different mobile ad competitors and enable advertising solutions that operate across a wide range of platforms.

Read the whole things for why this is great news for everyone, from consumers to developers to puppy dogs (that's not me being facetious -- it really is).

[Google Mobile Ads Blog via Daring Fireball]