When thinking about a mobile offering, it doesn’t take very long to get to a point where notifications come into play. You want to tell the user “Hey – something you’re interested in just happened”. Each mobile platform offers stronger Pros over Cons for using In App Notifications over SMS.
SMS Costs money for the sender, and may or may not cost money for the receiver based on their current data plan.
With In App notifications (on IPhone, Android, and Win Phone 7) you can offer a popup (similar to a received SMS), but additionally can include directions for the application to do something.
So in the end, for notifications, we’re tending to lead towards native In App notifications. Do you agree that we’re on the right track?