Solavei sells BlackBerry Z10 for $689; Samsung's Galaxy S IV teased in video

Quick news from around the Web.

@FierceWireless: RT@janovum: Been meaning to write something about Apple's problem with annual cycles. Now I don't have to: Article. Solid analysis | Follow@FierceWireless

> T-Mobile USA MVNO Solavei reduced the price of its BlackBerry Z10 to $689. Article

> Samsung's Galaxy S IV has reportedly leaked in a new video. Article

> A research group said Nvidia's Tegra 4 is faster than Qualcomm's newest Snapdragon chip. Article

> More video is watched on iPhones than Androids, according to new research. Article

> Immersion is restarting its litigation against HTC. Article

> ZTE said it is not planning a major round of layoffs. Article

> Sales at a group of companies that supply Apple fell in February. Article

Mobile Content News

> BlackBerry is rolling out an updated version of its signature Messenger application, extending voice-calling capabilities to legacy devices running BlackBerry OS 5. Article

> LinkedIn will purchase Alphonso Labs, the startup behind newsreader application Pulse, AllThingsD reports. Article

Mobile Developer News

> Games and social networking dominate 79 percent of mobile users' time. Article

> Developers are mourning the death of TweetDeck. Article

And finally… Google showed off apps for its new Glass product. Article