A theme starring Utatane Piko, a great yet VERY underrated Vocaloid persona and voice synthetizer. His voice bank provider is a real life singer also named Piko, who's known for his ability of making both male and female-pitched voices. While unique on his own like many of the Vocaloids, he's not as popular as other male voices such as Len Kagamine, this is mostly thanks to Sony's tight copyright license.
The wallpaper was made using the following images:
<a href="http://www.zerochan.net/1570381">Piko's art</a>
<a href="http://www.urdua.com/wallpapers/abstract/abstract-data-type-wallpaper.php">Smaller art</a>
<a href="http://www.gdefon.com/download/Techno_Base-Data_flow/1009/1280x960">Bigger art</a>
Utatane Piko is filliated to YAMAHA and belongs to Sony corporation.