More detail about the launch can be found in our news story from the Windows Phone 7 launch event - an event where Stephen Fry made a guest appearance.
Here's our roundup of other Windows Phone 7 news.
Microsoft readying thousands of Windows Phone 7 handsets
Windows Phone 7 set for 11 October release
Microsoft names initial Windows Phone 7 hardware partners
Will there be a Nokia Windows Phone 7 deal?
Windows Phone 7 won't run WinMo apps
Microsoft showcases what Windows Phone 7 will offer
Microsoft unveils final version of Windows Phone 7 code
Ballmer apologises for Winodws Mobile missed generation
If you're after something meatier about Windows Phone 7, our special features could be the answer.
A year ago we looked into the crystal ball to see what we could expect from Windows Phone 7. Then, earlier this year, we asked whether or not the new OS would succeed
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Best Windows Phone apps for 2018Best We list the important Windows Phone apps to help you choose what to download
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RIP Windows Phone: Microsoft ends support for its dying OS
News Windows Phone 8.1's support finished yesterday - will Windows 10 Mobile last much longer?
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Facebook messenger not working? Your phone might be too oldNews Certain smartphone users will no longer be able to access their Facebook messages
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Microsoft patents a foldable Surface phoneNews Will Microsoft build a Surface flip phone?
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Microsoft axes nearly 3,000 staff from smartphone divisionNews Total number of job cuts, across smartphone hardware and sales, in 2016 climbs to 4,700
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Microsoft's results show Windows Phone really is dead
News Overall, Microsoft income slumps to $20 billion despite cloud gains
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Microsoft Lumia 535 reviewReviews This Windows phone is the runt of the litter
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Is Windows Phone dead?Analysis As revenues plunge, we ask whether anyone can revive Microsoft's mobile enterprise
