with 4Shared.com's Public SOAP API.
(Mashup Service using 4Shared.com API)
You can find free mp3s and download it.
It's so simple and powerful.
Just use it.
* Important notices
** If you want to listen downloaded mp3s with Music Player, do Media-scan first.
* You can download only "FREE"...
WOW! SUPER-SIMPLE MP3 Downloader — You can just search it and download it without any sub-sequence.(login, etc...) App doesn't require anything but internet access only wonderful exactly what I was looking for and fast downloads