dTunes is an "all-in-one" player for the iPhone, which, in addition to the iPod, offers the possibility to access download sites for music or videos. With dTunes you can download music, video or torrents directly to your iPhone.

dTunes is very simple to use: search for the mp3 or artist you want to listen to and select the download option. The downloaded files are saved in the directory /var/mobile/Library/Downloads folder, and you can view them on the mobile screen.
After you download the mp3 or video files to your iPhone, you can listen or view them using the media player included in dTunes. In addition, dTunes offers the possibility to listen to music in the background, while you can send messages, read e-mails or take pictures.
The default site for mp3 downloads is seeqpod.com, and for videos, tinytube.net. Torrents can be downloaded using a service (registration required) called iTorrentRelay.

dTunes is a useful application for users who want to listen to music that they do not have loaded on their iPhone. It often happens that we listen to music online or opt for radio stations only because the music stored by us is "dull" from too many replays. But for those who want to use dtunes, it should be borne in mind that it can only be downloaded on a jailbroken iPhone, because Apple has not approved the application because it copies an iPhone feature.