http://www.articleheaven.net en-us editorial@articlealley.com Some people like iphone 4, some like iphone4g style cell phones. The price is much cheaper. And what's more it usually supports any GSM network, such like AT&T and TMobile. Yes, it is unlocked without contract. The following is the advantages and disa... http://www.articleheaven.net/pros-and-cons-of--iphone4g-clone-unlocked-cell-phones-2037813.html 16th February 2011 Dual-Band Cell Phones Since the surge in the number of mobile phone users, resulting in a mobile communication network system overload state, which will lead to the final result when the phone is prone to similar communications dropped, crosstalk, voic... http://www.articleheaven.net/differences-between-dualband-triband-fourband-mobile-phones-2035448.html 15th February 2011 Another version of 4th Generation Cell Phone appeared the Shenzhen market, the manufacturers named OSCAR S-7. Apple is currently using the 4th generation of intelligent systems are basically plug-ins using the WM system OS4 interface to achieve, which a m... http://www.articleheaven.net/newest-version-of-4th-generation-mobile-coming-now-2035041.html 15th February 2011