Following its official launch Wednesday, Apple's new mobile OS has already shot up the ranks, according to mobile analytics firm Mixpanel.
Apple may test the waters of a sapphire-screened phone by limiting the tough but pricey material to a single version of the next iPhone this year, claims analyst Gene Munster.
Chief Financial Officer Fran Shammo says he "feels much better about the second quarter."
The phone's screen would curve to conform to its rounded corners, according to Japanese website Macotakara.
The company already says Edge adoption is running above expectations, although it didn't disclose any numbers.
BlackBerrry revenue has taken a tumble while under a third of BlackBerry phones sold last quarter used BB10.
Out of 3.4 million BlackBerrys sold in the fiscal fourth quarter, only 1.1 million ran on the newer BlackBerry 10 OS. Still, the company posted a narrower loss than expected.
Since its release in the App Store as a free upgrade to OS X users, Apple's Mavericks operating system has been widely adopted; however, the rate of installation is only about half that of iOS.
The newest version of Apple's Mac operating system is being adopted faster than older versions of the software, according to stats from ad network Chitika.
The UK-based chip designer's Mbed operating system is among several efforts, including the work of standards groups and a new wireless protocol, designed to speed the adoption of the Internet of Things.