Airpush Wants to Destroy Android
joshuascholl.posterous.com
joshuascholl.posterous.com
The market tends to autocorrect itself pretty quickly for this kind of thing.
Push notifications' promise always included ads. It is just a matter of presenting them well. It is like nagware. The annoying ones will be punished, the effective ones will be rewarded.
And let's not get ahead of ourselves with the whole "push notifications have always been ads" - push notifications have always been with providing the end user with desired information. That may well come to include advertising, but up until this point advertising in push notifications has been an outlier at best.