Research in Motion

Today in Tech: Research in Motion co-CEOs resign

Fortune's curated selection of tech stories from the weekend. Sign up to get the round-up delivered to you each and every day.

* Research in Motion (RIMM) co-CEO Jim Balsillie and Mike Lazaridis stepped down after two decades of running the company together. Taking their place: Thorsten Heins, who joined RIM in 2007 and had been serving was one of two chief operating officers, overseeing software, hardware and sales. In an interview, Heins believes MORE

Today in Tech: Why new PlayBook software won't help RIM

Fortune's curated selection of tech stories from the long weekend. Sign up to get the round-up delivered to you each and every day.

* Some analysts have previewed the software update for Research in Motion's PlayBook and aren't impressed. Worse, they believe the update will do little to turn the floundering tablet's sales around. (The New York Times)

* Like Netflix (NFLX), Hulu is upping the ante by offering original content like the show Battleground, MORE

ChangeWave survey finds 'explosive momentum' for Apple and Samsung

Interest in the Galaxy Nexus is high, but the iPhone still leads in customer satisfaction

The next few months should be very good for Apple (AAPL) and Samsung -- and not so good for HTC and Research in Motion (RIMM) -- according to the results of a survey of 4,000 North American early adopters posted Monday by ChangeWave Research.

More than half of the respondents who plan to buy a smartphone in MORE

Today in Tech: What happens to T-Mobile?

Fortune's curated selection of tech stories from the last 24 hours. Sign up to get the round-up delivered to you each and every day.

* Now that the AT&T (T) and T-Mobile merger is dunzo, the next step for T-Mobile, which is losing subscribers, remains unclear. "There's no Plan B," said a spokesman for Deutsche Telekom, the German telecommunications company that owns T-Mobile. "We're back at the starting point." (The New York Times)

* Oracle MORE

Today in Tech: Apple's big TV plans

Fortune's curated selection of tech stories from the weekend. Sign up to get the round-up delivered to you each and every day.

* According to The Wall Street Journal, Apple (AAPL) is plunging ahead with plans for a TV that may incorporate voice and gesture-based technology, a form of AirPlay that would let iPhones and iPads act as remote controls, DVR storage, and iCloud. (The Wall Street Journal)

* Why Amazon (AMZN) is willing to MORE

Today in Tech: Research in Motion's troubles continue

Fortune's curated selection of tech stories from the last 24 hours. Sign up to get the round-up delivered to you each and every day.

* The real story behind former Windows Mobile head Andy Lees' removal from his role. According to The Verge, Lees' lofty, public estimates for Windows Phone 7's success -- and the hard reality that it hasn't made much of a dent in the market -- created a rift. (The MORE

Nielsen: iPhone & Android own 71% of U.S. smartphone market

83% of the apps downloaded in the past month were for a Google or Apple phone

The U.S. smartphone market is starting to look like a two-horse race, judging from data scheduled to be released Wednesday by a Nielsen general manager at AppNation III in San Francisco. Among the new findings:

44% of all U.S. mobile subscribers now own a smartphone
56% of the mobile phones purchased in the past three months were MORE

Morgan Stanley: What iPhone really needs is more carriers

The key to future sales growth is signing up new cellular operators, especially in Asia

In a series of well-researched charts, Morgan Stanley's Katy Huberty has put her finger on the one factor -- all others being equal -- that really drives smartphone sales: The number of cell phone operators that sell the thing.

In a report issued to clients Sunday, Huberty shared the results of an analysis of 760 carriers in MORE

BlackBerry's business problem

Slow browsing, few apps, and an embarrassing service outage. Can BlackBerry recover from its biggest crisis yet?

FORTUNE -- Addictions are tough to break, yet Research in Motion seems to be doing whatever it can to help users cast aside their CrackBerrys once and for all. Consider just a few of the reasons the Canadian maker of the BlackBerry smartphone is ailing: an international outage in mid-October; the Playbook tablet, a MORE

Today in Tech: Amazon launches e-book library for Prime users

Fortune's curated selection of newsworthy tech stories from the last 24 hours. Sign up to get the round-up delivered to you every day.

* Amazon (AMZN) is launching an e-book library today exclusively for Kindle and Kindle Fire users who are also Amazon Prime subscribers. Initially, the e-commerce giant will offer just 5,000 or so titles -- none of them from the six big publishing houses will. Each user will also only be MORE