AT&T offers $200 credit to switchers; Verizon will sell Sony's Xperia Z4

Wireless news from across the web:

"HoloLens Is Awesome, but Microsoft Has a Long Way to Go  via @business"--@FierceWireless

> AT&T is offering a $200 bill credit for each line switched over in select markets. AT&T blog post

> Sony's Xperia Z4 is coming to the U.S. as the Z4v for Verizon Wireless. The Verge article

> A security researcher said there is still a major security flaw in Samsung's smartphones. WSJ article (sub. req.)

> LG Electronics has agreed to use Nokia's smartphone patent license but royalty payments will be settled in a lengthy arbitration process. Reuters article 

> Shares in Telecom Italia jumped after a report that the French media group Vivendi will be cementing its influence over Italy's biggest phone group once its current big shareholders exit. Reuters article

> Google's former head of mapping is joining Uber, as the mobile-car booking startup ramps up efforts to develop its own technology related to maps, navigation and transport. Bloomberg article

> Former Twitter CEO Dick Costolo talks about why he stepped down and what's next. Bloomberg article

> Microsoft made available a new build of its Windows 10 Mobile Technical Preview. Phonescoop article

> Sierra Wireless unveiled Project mangOH, an open hardware reference design, with an open interface standard. Release

> HTC confirmed that sponsored content is coming to its BlinkFeed app in several countries. HTC blog post

> Amazon might start paying ordinary people to deliver its packages. WSJ article (sub. req.)

Online Video News

> In a study from Digitalsmiths, 32.4 percent of current cable, satellite and IPTV subscribers said they're "on the fence" about keeping their service and would need enticement to stay. Article

> The media and entertainment industry is getting in its own way in the campaign to package content for a younger, OTT-friendly audience, a SeaChange executive told the audience at the OTT Executive Summit in New York. Article

Cable News

> Cablevision CEO James Dolan used his latest public speaking opportunity to hammer home his strategy of de-emphasizing video services in favor of high-speed data and connectivity. Article

> While Comcast has been quiet about a Wi-Fi calling product, the company has filed a patent revealing the active development of the technology. Article

Telecom News

> Comcast is ramping up its 2 Gbps fiber-to-the-home (FTTH) campaign, announcing that it will bring its Gigabit Pro service to about 1.5 million homes in Michigan. Article

> A group of 35 mayors and city officials from various states have sent a letter to the FCC asking the regulator to create a uniform and accessible reporting structure on service provider broadband performance. Article

European Wireless News

> Huawei emphasized its partnerships with European operators, car manufacturers and others to show its leadership in this market. Article

> Hannes Ametsreiter resigned as CEO of the Telekom Austria group in what was described as a surprise move, marking the end of his long tenure at the América Móvil-owned operator. Article

And finally... Snapchat CEO Evan Spiegel deletes his tweets. Article (sub. req.)