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 Ferrari Doors - Ferrari like door        conversion for your car.
http://www.ferraridoors.com

 Suicide Your Ride - Suicide kit for your car or truck; includes lambodoors, front flip hood, reverse lambo doors, reverse trunk
kit, and shaved door handles.  Turn heads!
http://www.suicideyourride.com

FreeCarKits.com - free body kits and accessories through sponsorship.  Hundreds of free car modifications as well.
http://www.freecarkits.com

Prior mobile telephones (the so-called 0G generation), such as Mobile Telephone Service, date back to 1945. These were not categorized as cellular phones, since they did not support handover, i.e. automatic change of channel frequency in the middle of a call, when the user moved from one cell (base station coverage area) to another.

Until the mid to late 1980s, most mobile phones were sufficiently large that they were permanently installed in vehicles as car phones. With the advance of miniaturization, currently the vast majority of mobile phones are handheld. In addition to the standard voice function of a telephone, a mobile phone can support many additional services such as SMS for text messaging, email, packet switching for access to the Internet, and MMS for sending and receiving photos and video.

Mobile phone manufacturers include Apple Inc., Audiovox, Benefon, BenQ-Siemens, High Tech Computer Corporation, Fujitsu, Kyocera, 3G, LG, Motorola, NEC, i-mate, Nokia, Panasonic (Matsushita Electric), Pantech Curitel, Philips, Sagem, Samsung, Sanyo, Sharp, Siemens, SK Teletech, Sony Ericsson, T&A Alcatel, T-Mobile, and Toshiba.

There are also specialist communication systems related to, but distinct from mobile phones, such as Professional Mobile Radio. Mobile phones are also distinct from cordless telephones, which generally operate only within a limited range of a specific base station. Technically, the term mobile phone includes such devices as satellite phones and pre-cellular mobile phones such as those operating via MTS which do not have a cellular network, whereas the related term cell(ular) phone does not. In practice, the two terms are used nearly interchangeably, with the preferred term varying by location. There are many different networks on mobile phones. Some are pay as you go, where top-ups can be purchased and added to a phone unit, so there is no monthly bill. Many are "pay monthly", where a bill is issued every month for the amount of calls and text messages made.

The concept of using hexagonal cells for mobile phone base stations was invented in 1947 by Bell Labs engineers at AT&T (see History of mobile phones) and was further developed by Bell Labs during the 1960s. In 1970 Amos Joel of Bell Labs invented "call handoff" that allowed a mobile phone user to travel through several cells during the same conversation. Martin Cooper of Motorola is widely considered to be the inventor of the first practical cell phone for handheld use in a non-vehicle setting. Using a modern, if somewhat heavy portable handset, Cooper made the first call on a handheld cell phone on April 3, 1973. At the time he made his call, Cooper was working as Motorola's General Manager of its Communications Division.