IHS: 38mm Apple Watch Sport component and manufacturing costs are $83.70, about 24% of retail price  —  Apple Watch Sport Component Costs Estimated at $83.70, Which Won't Sit Well With Tim Cook  —  IHS iSuppli often tears down devices to estimate component costs, and today …

Mobile news app Circa seeking a buyer after failing to secure a new round of venture funding  —  Exclusive: News app Circa is seeking a buyer  —  Mobile news app Circa is seeking a buyer after failing to secure a new round of venture capital funding, Fortune has learned.

Leaked Lyft presentation to investors reveals estimated $130M revenue in 2014; company spends $530 marketing per driver and 22 passengers in SF  —  Leaked Lyft Document Reveals a Costly Battle With Uber  —  The startup also describes its rival as having an “anti-social culture”

A long-winded case for replacing Dick Costolo  —  Twitter Needs New Leadership  —  Yesterday Twitter released very disappointing quarterly results, with misses on both user and revenue growth.  From the Wall Street Journal: … The symbolism of the leak was appropriate …

LinkedIn plunges 27% after hours on lower outlook after reporting Q1 revenue of $638M  —  LinkedIn shares down 17 percent after weak outlook  —  Shares of LinkedIn plunged after the company released lowered guidance for the year.  The company reported earnings per share of 57 cents …

Windows 10 won't launch on phones this summer  —  While Microsoft is planning to launch Windows 10 on PCs this summer, the phone part of the operating system will debut at a later date.  Speaking at a media event at Build in San Francisco today, Microsoft's Joe Belfiore explained the company's plans for the launch of Windows 10.

Microsoft showcases face detection API with a web site that guesses your age based on a photo, which quickly goes viral  —  Microsoft's face-recognition app How Old gets everyone's age wrong, turns into a meme  —  My Twitter timeline just blew up with selfies with boxes hovering above faces guessing …

Apple poaches top producers from BBC Radio 1 for new Spotify rival  —  Whatever Apple is creating to rival Spotify just got a lot more intriguing.  —  Little more than two months after poaching Zane Lowe from BBC Radio 1, MBW understands that Apple has pinched four producers from the station …

Warby Parker raises $100M round led by T. Rowe Price, sources say at a valuation of $1.2B  —  Eyeglass Retailer Warby Parker Valued at $1.2 Billion  —  Online eyeglass retailer Warby Parker has raised a fresh round of capital that values it over $1 billion and bolsters its expansion of brick-and-mortar stores.

Unity announces full support for Microsoft HoloLens  —  Announcing Support for Microsoft HoloLens  —  Holograms for all!  We've expanded our strategic collaboration with Microsoft to include full support for Microsoft HoloLens holographic computer.  Microsoft made the announcement today during …

Image sensors in iPhone 6 and Galaxy S6 generate as much as $20 per unit for Sony  —  How Sony Makes Money Off Apple's iPhone  —  Image sensors for Apple, Samsung fuel Japanese consumer-electronics giant's turnaround strategy  —  TOKYO—Sony Corp. lost the smartphone war but rings up a sale …

Sources: Microsoft to pay about $30M for assets of touch screen technology company N-trig  —  Microsoft to Pay Around $30 Million for N-trig  —  Company's components used in Microsoft's Surface Pro 3 tablet  —  Microsoft Corp. has signed an agreement to buy the assets …

Custom Voice Actions Launch On Android, Allow You To Control Selected 3rd Party Apps  —  Over on the Android Developer's Google+ page an awesome new feature for Google's voice search was just announced.  A small selection of applications will now open directly when using certain voice commands.