BUILD 2013 day 1 Keynote recap for devs

Only 7 months after the previous BUILD event, Microsoft is hosting a new BUILD conference in San Francisco (June 26-28, 2013).

Notable announcements of day 1:

• The Windows 8.1 preview is available today
• Preview of Internet Explorer 11
• Visual Studio 2013 Preview and .NET Framework 4.5.1 Preview are both available
• The Windows Store has been redesigned and is now much more interesting, both for users and developers
• Windows Phone 8 annual Dev Center registration is reduced to $19 for the next 60 days! (normally $99 for individuals and companies)

Also to check out:

Windows 8.1 Preview Product Guide for Developers
http://msdn.microsoft.com/en-US/windows/apps/bg184615

F12 Tools in Internet Explorer 11 Preview has been rebuilt from the ground up:
http://msdn.microsoft.com/en-us/library/ie/bg182632

Watch the entire keynote online:
http://channel9.msdn.com/Events/Build/2013/1-001

Read the full transcript:
http://www.microsoft.com/en-us/news/Speeches/2013/06-26Build2013.aspx