Dueling Dual-Cores? LG Optimus 2x World's 1st Dual-Core Processor Smartphone Atrix 1st U.S.

There aren't many dual-core processor smartphones available today.  Some smartphone makers have been claiming to be the first dual-core maker.  Guiness World Records has given the first dual-core processor honor to LG for the LG Optimus 2x.

"The first mobile phone to use a dual-core processor is the LG Optimus 2x, which was first made available to the public nationwide in South Korea, on 25 January 2011."

The first dual-core processor smartphone in the United States, however, was the Motorola Atrix 4G that was released on March 6, 2011.  The U.S. version of the LG Optimus 2x, the T-Mobile G2x, was released online on April 15 and received excellent reviews and two Editors' Choice Awards.

Read our list of best dual-core processor smartphones now and later.  Dual-core processor smartphones appear on our list of the Top Best Android an' Droid Smartphones Now an' Later.

Pedro Matias of Portugal earned the Fastest typing on a smartphone Guinness World Records title in front of a global audience, in a time of 1 minute 59.8 seconds.

Guinness World Records also reported that PepsiCo's Frito-Lay division set a new Guinness World Records title for the "Most Fans on Facebook in 24 Hours," garnering 1,571,161 new "likes" (i.e. "fans") on April 11, 2011.