I was one of the first appstore millionaires via my app Trism... I wrote it in my offhours before the appstore launched. Story here -> http://bit.ly/psyMBf
Lots to say on the subject. Press is disorienting. Friends do change. Noone can tell you what the value of your idea is. Best thing you can do with your time in the spotlight is make good connections and learn the importance of good relationships.