Google's recently acquired AdMob mobile advertising network released yesterday new open source versions of the AdWhirl iPhone SDK and AdWhirl Server.
"Our primary goal with this launch," according to AdMob's blog announcement, "is to maintain the ease-of-use to which AdWhirl users have become accustomed, while giving developers increased transparency and flexibility in meeting their mobile ad network mediation needs."
With the new iPhone SDK developers can write much tighter applications.
"The new open AdWhirl iPhone SDK allows developers to include only the code for ad networks that they actually use, an advantage for developers concerned with the size of their apps."
Developers can also plugin custom interfaces to mobile networks not explicitly supported in the current version of AdWhirl.
"The open AdWhirl team," AdMob's statement said, "will be actively encouraging developers to submit those additions as patches so that the entire community can benefit."