Cellular Networks

Amtrak explores trackside network to upgrade Acela’s Wi-Fi service

Samsung introduces Tizen smartphone, with a Tizen TV next year

The Samsung Z will be on show at the Tizen Developer Conference this week in San Francisco

Backlash over Facebook’s ‘listening’ feature is a problem of trust

An online petition against the feature had 500,000 backers by Friday

Global mobile roaming hub accessible from the Internet and vulnerable, researchers find

Two security researchers from KPN found vulnerable hosts in the GPRS Roaming Exchange that can be attacked from the Internet

Asus PadFone X orders start June 6 from AT&T

Smartphone and tablet docking station cost $199 under two-year contract

LG’s new G3 smartphone: Simpler is better

User simplicity runs from camera updates to new user interface

Facebook tries to limit over-sharing

The company said it would be de-emphaizing certain posts from outside apps

DARPA unveils hack-proof drone tech

New unmanned aerial vehicle will be impervious to hacker attacks, agency says

LG will Webcast its G3 smartphone launch

Web site confirms smartphone's arrival at 1 p.m. ET today, with teaser video

How to sort your Facebook feed by time on mobile

Some users criticize a mobile update making a time-sort feature harder to access