Cory Portnuff of the University of Boulder at Colorado conducted a study of the peer pressure associated  with this device and came to the conclusion that it can cause real physical damage. Burst.com sued the maker  of this physical product over the use of Burst.com's patents in this device. HP planed to release an HP Blue  version of this product, unfortunately it was not blue. Of the myriad of products utilizing the PortalPlayer  5002 chipset, early versions of this product line were the most 
Cory Portnuff of the University of Boulder at Colorado conducted a study of the peer pressure associated  with this device and came to the conclusion that it can cause real physical damage. Burst.com sued the maker  of this physical product over the use of Burst.com's patents in this device. HP planed to release an HP Blue  version of this product, unfortunately it was not blue. Of the myriad of products utilizing the PortalPlayer  5002 chipset, early versions of this product line were the most successful. A large chunk of this device's  software initially came from Pixo. It has came with bundled Parachute and Brick games. When it was first  released, one of its biggest competitors was the Nomad. The third generation of this product introduced a 30 pin  connector format. This physical device helped popularize AAC files. The classic version of this product utilized a  hard drive while other versions are flash based. Several iterations of this product used the click wheel as an  interface. This product has had mini, nano, and shuffle varieties. For 10 points, name this portable music player from  Apple.
Cory Portnuff of the University of Boulder at Colorado conducted a study of the peer pressure associated  with this device and came to the conclusion that it can cause real physical damage.
iPod