Windows Phone 7 and the Mango update, from launch to its rollout.
The Nokia Lumia 900 is what Nokia's flagship Windows Phone 7.5 should have been all along. Where the Lumia 800 felt rushed, the 900 feels just right. Sadly, Microsoft has effectively killed every current Windows Phone with Windows Phone 8.
Windows Phone Mango, also known as Windows Phone 7.5, has reached Released to Manufacturing, meaning we'll have it soon, likely around September or October 2011. The RTM build is 7720, and the Windows Phone development team officially signed off.
Microsoft has previewed its Windows Phone 'Mango' update, with the Windows Phone 7.1 SDK now out. Mango and new Windows Phones are due this autumn, the first Nokia Windows Phones will run Mango, and Communications gains Threads and Groups.
Flickr first teased apps for Windows 7 and Windows Phone 7 back in January 2011, and they're finally available, something I'd been waiting for. The app shows your photos in high resolution and lets you browse photostreams and sets richly.