Microsoft unveils Windows 10

The BBC has an article by Leo Kelion about the latest from Microsoft:

Microsoft has disclosed the first details of Windows 10, its next operating system.
The name is a surprise, bearing in mind it represents a jump from the last version, Windows 8.
The software will run on a wide range of devices, from phones and tablets to PCs and Xbox games consoles, with applications sold from a single store.
It also marks the return of the Start Menu, which had been removed from Windows 8.
In addition to offering a list of the user's favorite applications, the menu also brings up resizable tiles, similar to those featured in Windows 8's touch-centric interface on PCs and tablets. These provide a quick view of notifications from relevant applications, such as details of new emails, Facebook messages and weather forecast updates.
The company said the facility was intended to make the software seem familiar to both users of Windows 8 and Windows 7.
The behavior of the OS will depend on the type of device with which it is being used. Unlike its predecessor, users will not need to switch between Desktop Mode and the touch-focused alternative. However, they can still spread a number of "live tiles" across the screens of two-in-one laptop-tablet hybrids to make them easier to use with both a mouse and finger gestures.
Windows 8 had been criticized for being too different to the previous version, which deterred some organizations from introducing it. Microsoft's chief executive, Satya Nadella, did not speak at the event, but had previously discussed a wish to "unify" Windows It initially lacked a Start button altogether, and when one was introduced, it only switched to the touch-centric tiled interface or, if a long mouse press was used, provided access to the system's control panel and other functions.
Businesses typically wait about a year after a new operating system's release before offering it to workers, to give their IT staff a chance to get to grips with the new technologies involved. But it has been nearly two years since Windows 8 first went on sale, and adoption is still low.
"It's extremely important for Microsoft to get Windows 10 right," said David Johnson, who watches Microsoft for the consultancy Forrester. "Windows 8 is only being offered to employees by about one in five organizations right now. Windows 7 is still the de facto standard for enterprise in the desktop environment. For Microsoft to continue to be able to get the best and latest technology in the hands of the enterprise workforce all over the world, it has to have a vehicle to do that, and Windows 10 is its best shot."
Microsoft said Windows 10 would work on devices from four inch to eighty inch screens.
Across desktop PCs as a whole, only fourteen percent currently run Windows 8 or Windows 8.1, according to research firm NetMarketshare. By contrast, it says fifty percent are powered by Windows 7 and twenty-four percent by Windows XP, a version that is no longer supported by Microsoft.
Johnson said the reintroduction of the Start Menu should help Windows 10 fare better. "It is critically important," he said. "The Start Menu is perhaps the most important thing that will make the desktop experience familiar to business users, and will help reduce resistance to its installation."
Other features of Windows 10 include:
The task-view button offers one-click access to all running apps and files.
Snap enhancements; a new "quadrant layout" will allow four apps to be easily arranged on the same screen.
Task view; a new button on the task bar will let the user see all open apps and files, helping them switch from one to another.
Multiple desktops; users can switch between distinct desktop screens, allowing them to group related work together rather than having to deal with a single screen overloaded with documents and apps.
This is similar to a feature already available on Apple's Mac OS.

Rico says wooo, a Start menu...