Sprint looks poised to enter an LTE future

Sprint looks to be seriously considering a major strategic move away from WiMAX technology and toward LTE technology.

Hands on: HTC Flyer tablet

PCWorld's Mark Sullivan got a close up look at the new HTC Flyer tablet at the Mobile World Congress in Barcelona.

Mobile payments in US mired in fight for control

While mobile payments are popping up in Europe, they're unlikely to take hold in the U.S., as mobile carriers, credit card companies, and banking intermediaries work out who will control the system.

Hands On: Samsung’s Galaxy S 4G Smartphone

PCWorld's Mark Sullivan spends some time with the new 4G Android phone from Samsung.

Hands On: Sony Ericsson Xperia Play gaming phone

Sony Ericsson got its game on at Mobile World Congress in Barcelona with the announcement of its Xperia Play gaming phone. Mark Sullivan of PCWorld has the details.

After Verizon, could Sprint be next to get the iPhone?

The stars seem to be aligning for a Sprint iPhone.

Opinion: Verizon iPhone could be 4G ‘World Phone’

PCWorld's Mark Sullivan thinks Tuesday's Verizon announcement will deliver an a dual-mode phone, able to connect to both Verizon's CDMA-based network and with AT&T's GSM-based technology.

4G a war of tech and words at CES 2011

T-Mobile and Verizon traded barbs over their respective 4G offerings.

AT&T slam adds fuel to Verizon iPhone speculation

Results from a new Consumer Reports survey puts into real numbers iPhone owners' continuing unhappiness with AT&T's network service, and suggests that a Verizon iPhone would be a good thing for Apple and consumer alike.

Facebook Deals: How it works at street level

PCWorld's Mark Sullivan takes a closer look at the newly unveiled Facebook Deals service -- how it works with Facebook's mobile app, what may be coming in the future, and whether you should be concerned about your privacy.

iPhone 4 seems to connect faster, with one troubling flaw

PCWorld's Mark Sullivan tested the iPhone 4's antenna in five locations in San Francisco. Overall, the iPhone 4's antenna design has some very positive effects on the phone's network performance. But there's one serious flaw.

AT&T Wireless CEO hints at ‘managing’ iPhone data usage

At the CTIA conference in San Diego, AT&T Wireless CEO Ralph de la Vega hinted that iPhone data usage may need to be 'managed' in the future.

Sprint president takes a shot (or two) at AT&T 3G

Speaking at the 4G World Conference in Chicago, Sprint's Keith Cowan used AT&T's 3G network as the punchline to several jokes, underscoring how iPhone rivals are using the issue to promote their own products.

First 4G Android-based smartphone may arrive in 2010

At the 4G World Conference in Chicago, PC World's Mark Sullivan talks to carriers, handset makers, and analysts and concludes a 4G smartphone is on its way.

How much does it really cost to own a smartphone?

PC World looks at the long-term expense of owning a smartphone and finds that there isn't a big difference in total cost of ownership when it comes to the most popular smartphones.