HTC One

As expected, Samsung Electronics is bringing its flagship Galaxy S4 to a bevy of U.S. carriers--and the operators are tripping over themselves to offer deals tied to the phone in an attempt to boost sales.

HTC's net profit in the first quarter plunged as the company's earnings took a hit because of launch delays for the One, HTC's flagship smartphone around which it is basing its 2013 turnaround strategy.

Nokia CEO Stephen Elop said he is confident that the company's Lumia smartphones running Microsoft's Windows Phone can help the platform grab more market share, and said he is focused on the enterprise market as a major opportunity. However, analysts are worried that Nokia's lack of a 5-inch superphone to compete with the likes of the Samsung Galaxy S4 may be holding the company back.

HTC has received "several hundred thousand" U.S. pre-orders for its flagship One smartphone, according to an email from a top HTC executive. The news creates a clearer indication of domestic demand for the device that HTC is banking its comeback on. However, the timing of the launch of the device, particularly in the United States, will put the One in direct competition with Samsung Electronics' Galaxy S4.

HTC confirmed that it has pushed back the global rollout of its flagship One smartphone by several weeks due to supply constraints of key components, a decision that will push the One's launch closer to that of Samsung Electronics' Galaxy S4.

HTC promised to be more aggressive in its marketing to counter the likes of Samsung Electronics and Apple--and that attitude was in full display in HTC's reaction to Samsung's unveiling of its new flagship smartphone, the Galaxy S4.