Where is Windows 7 debut?

Q: Where is the Windows 7 debut?
A: Long Chinese English blogger Long Zheng from Australia recently revealed on his blog that Windows 7 will be held on May 27, 2008, D6: All Things The Digital Conference (all digital conferences) was officially unveiled for the first time.
On December 3, 2008, WinHEC 2008, the largest Microsoft Windows hardware engineering conference in Asia, opened in Beijing. At the conference, Microsoft unveiled its next-generation operating system, Windows 7, and released the Chinese version of Windows Home Server for digital homes and the .NET Micro Framework 3.0 for embedded systems. This is the first time Windows 7 has been displayed in China.