Chinese e-commerce giant Alibaba just racked up more to $5 billion in sales in 90 minutes, Wired reports. Even more remarkable, “Seventy-four percent of those were from mobile phones,” it notes. Shoppers were apparently excited for “Singles Day,” which encourages the unmarried and unattached to treat themselves with nice gifts.

iHeartMedia just launched iHeartRadio Family -- a stand-alone iOS and Android app for kids. “iHeartRadio Family features a mix of live and DJ-hosted stations geared towards children ages 4 to 11,” Fast Company reports. “It also marks a new partnership with retailer Build-A-Bear Workshop.”

It the app marketplace officially too crowded? Most definitely, suggests Alex Austin, the co-founder and CEO of deep-link startup Branch Metrics. “In the past four weeks, there were 45,000 new apps submitted to the iOS App Store alone,” he writes in a Medium post. “The chances that any of them will ever break into the top 1000 are effectively 0%.”

Microsoft just bought Mobile Data Labs, the maker of mileage-tracking app MileIQ. “While not the most riveting piece of software, the acquisition marks the continuation of Microsoft's effort to gain a foothold in mobile through scooping up popular apps … that can be tied into Windows services,” The Verge notes.  

Google is reportedly working with microchip makers to bring more uniformity to Android phones. “That, Google hopes, would make its Android mobile operating system more competitive with Apple’s phones at the high end of the market and solve other major problems,” The Information reports.  

Facebook is reportedly about ready to launch Notify -- a new standalone app that will carry content from Vogue, the Washington Post, CBS, and other partners. “The standalone app will alert users to new stories from professional media outlets,” The Financial Times reports.  

Since its launch earlier this year, Apple has shipped 7 million Apple Watches, according to estimates from Canalys. “That number falls shy of some Wall Street analysts’ expectations for Apple’s first new device category since 2010,” Re/code notes. Still, “Apple sold more smartwatches from April through September than all other vendors combined sold over the past five quarters.”  

Groupon’s board is replacing co-founder Eric Lefkofsky as CEO with Rich Williams, the company’s chief operating officer. “Lefkofsky will return to his previous role as chairman of the board, with current chair Ted Leonsis sliding into an independent director position,” Re/code reports. “The changes are effective immediately.”  

Beating analyst expectations, Zynga brought in about $176 million in bookings with flat earnings and revenue of $196 million. “Analysts were expecting a loss of 1 cent per share for the company’s earnings,” TechCrunch reports. “Zynga’s been in a tough position as it transitions to mobile.”  

So much for Google’s first-ever New York City retail store. “Google planned to begin opening stores to sell products such as the Chromebook … and smartphones that run its Android operating system,” Crain’s reports. But “it would appear that the company has changed its mind.”