Honestly, I never really saw the need for apps such as pandora, 4th and mayor and instagram especially when there are better alternatives out there that provided some of the same if not superior options depending on your point of view. For me, I prefer iheart and slacker over pandora due to customization, live radio and overall performance. But when it comes to instagram, I believe fhotoroom could be a superior replacement for the app but does not get the recognition it deserves due to the fascination with instagram. Fhotoroom provides more option for custom pictures and provides one of the best overall experiences for sharing pictures. If marketed properly and given it's due I believe it could compete on equal footing. Just my two cents.
As for if Nokia should be ashamed or embarrassed. **** no, they are doing what it takes to build the platform they decided to back and if they have to pay, start campaigns or whatever it's their right. They have a vested interest and treating it as just that. So Mr. Iphone or Android can go somewhere else with this nonsense.