Windows Phone 7 is a success for Microsoft, in that it shows the company coming out swinging in the smartphone wars.
That's our verdict on the company's new smartphone OS, following yesterday's launch event.
The user interface is definably different from rivals like iPhone, Android and BlackBerry. Meanwhile, Microsoft has stolen a march on its rivals with the deep integration of Facebook.
There are quibbles. Orange boss Tom Alexander's appearance on-stage - during which he plugged his network and forgot the name of one of its exclusive handsets - was not a great showing for his company.
Meanwhile, there was no big reveal of apps - in London at least - showing how developers are making innovative use of the WP7 platform. We expect more to break cover in the coming weeks, however.

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