Streaming music from your PC directly to your Xbox 360 is fairly simple; all you need is Windows Media Player. First turn on your Xbox, then select More streaming options… from the Stream menu in Windows Media Player 12.
Testing on the Xcode simulator is nice, but you should always test on the platform you’re actually developing for. In addition, some features cannot be simulated in the emulator, such as the accelerometer, and will need to be tested on a physical device. Here are the steps to setting up your device for testing.
First, you will need to sign up for the iOS Developer Program if you have not already done so.