A couple things...Pharma Messaging on the banner page....Not everyone will see these messages, it's based on your taxonomy codes....Pediatricians won't see messages for Cardiologists. Support can turn these off if you really hate them. They're designed not to be intrusive to workflow hence on the login page. Yes we get pennies to help offset costs that would otherwise be passed along to you:-).
The RX change feature was described back in the 10.0 release notes. They are messages from the Pharmacist to you about wanting your approval to change a prescription you submitted. Some of the major pharmacies are just starting to support it so not everyone will see them yet. I'll add them to the 11.2 release notes as a refresher.
