Finally the official Beta software of Office 2010 with the office web applications is now made available on MSDN and TechNet Plus .Those with subscription to both can download and check out the Office 2010 Beta with official product keys from Microsoft by going to Applications -> Office 2010 category.Office 2010 Beta is available in both 32 and 64-bit versions.Older versions including screens of  Beta1 Mondo build 14.0.4417.10 have been leaked previously latest being the 14.0.4514.1009 version for 32bit and 64 bit versions.The Build number which is available in MSDN/Technet of Office 2010 Beta is 14.0.4536.1000 which is newer than the previously leaked build 14.0.4514.1009.Thanks to VG for screenshot and Taimur for links

Download Office 2010 Beta from MSDN
Download Office 2010 Beta from TechNet Plus

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