You can load music on to the Pre in two ways: First, when the Pre is connected to your computer, the computer simply recognizes it as a mass storage device; you can drag and drop music files into the device this way. The other option is to do it through iTunes, where any DRM-free files can be transferred seamlessly. Either way, your Pre will recognize the file type and pull it into the Music application, so you can organize your music without worrying about where it’s sitting.

You can play the music file in the background while you’re using other applications on the Pre. One caveat, however, is that there is no way to actually save the mp3 file itself for later offline playback. However, with an unlimited data plan this will not really be an issue, especially since the streaming is uninterrupted and high quality.