Jangwon Park and Sangwoo Park have come up with an innovative new accessory for mobile phones. As Jangwon puts it, in today's busy society, we have constantly have our phones by our side—whatever happened to spending time with pets? The concept behind Mobile Tail is to give our phones a personality, to add a tail to both personalize, and give a sense of heart to our "constant companion."

The design is basic with a curved piece of silicone growing into a suction cup that is simple and quick to attach to the back of any mobile phone. Mobile Tail is made of flexible liquid silicone rubber (LSR)—a non-reactive, non-toxic, high-purity material that has just the right amount of resistance to offer enough support to hold the phone up at optimum viewing angles.

Unlike fixed, hard-plastic solutions, the Mobile Tail is innovative for its malleability: the silicon has enough give so you can simply push the phone gently to knock it from the portrait viewing position to the landscape position and back again, without the need to lift up the phone.

The tail can either be left sticking straight out or stuck in the earphone jack of the phone. This gives it some extra strength, and adds to the rolling effect when gently pushing the set into different positions. The Mobile Tail can be easily attached, removed and reattached to mobile devices in any position with its suction cap.

Jangwon also explained that the the "packaging is very cute. It's been designed to look like there is a small animal kept inside." With the original batch, there were four colors produced to match with Apple iPods, but now a few new ones have been added as well. Because of the versatility of the suction design, the Mobile Tail is compatible with Samsung, Nokia, RIM, and any maker's phones. Thanks to the use of more refined fabrication methods, Mobile Tail has no mold lines, to the effect that it is uniformly smooth... not to mention quite enjoyable to play with.

On top of having won a Red Dot award for design excellence recently, Jangwon says that Mobile Tail pursues "social responsibility as a design product. One percent of profits from its sale will be donated to animal an animal conservation group in each country."

Currently "Mobile Tail" is the name of the product, but Sangwoo and Jangwon Park have decided to establish their design company under the name as well. When asked about future products for the company, Jangwon Park mentioned how there is a need for a touch pen for capacitive touch screens. When asked whether he was inspired by the famous trend in South Korea to use locally available "Homo snack sausages" as touch pens for capacitive touch screens, Jangwon laughed and suggested that their next product would be much more stylishly, and ergonomically, designed than snack sausages.