This is just a heads up to developers who are looking to get their hands dirty with iAds as you can now do so by joining the iAd Network and downloading the development kit Apple has just released.

The iAd Network provides an intuitive environment for you to easily incorporate iAd rich media ads into your applications. You can also monitor performance and track revenue. iPhone Developer Program members can join the iAd Network today.

So developers should not delay, receiving 60 percent of the advertising revenue is not too shabby and should be well worth their time.