Former TUAW contributor Dan Pourhadi has become quite the iOS developer, and his OnCue app (US$2.99) keeps getting more features and popularity with every revision. The app was updated to version 5.01 this week, and has been burning up the iTunes App Store charts -- it's currently the #12 paid iPad music app and #24 on the iPhone.
In case you're not familiar with OnCue, it's an amazing mobile music player that gives users an easy way to create and arrange music queues. As an enhancement to your music library, it's a fu
