If you have an MSDN or TechNet subscription, Office 2010 is now available for download. In addition, Microsoft has made SharePoint 2010 and the Office Web Apps 2010 package (which requires a SharePoint Server) available for subscribers of both services.

Currently, two downloads are available at each site: 32-bit (x86) and 64-bit (x64) versions of the Professional Plus Retail edition.

Subscribers to each service get a single product key for the Office 2010 download. If past history holds true, this key can be used to activate two copies: one on a desktop PC, the other on a portable PC that is used by the same person as the desktop PC.

Normally, subscribers get 10 product keys for this retail SKU, plus an additional key for use on Volume Licensing copies. A notice at both MSDN and TechNet Microsoft says additional product keys for subscribers will be available on April 30.

And for all you retail purchasers out there, know that if you purchase Office 2007 now, you are eligible for a free Upgrade to Office 2010.

All you need to be eligible for this program – Office 2010 Technology Guarantee – is the following:

• Purchase Office 2007, or a new PC with Office 2007, and activate it between March 5, 2010 and September 30, 2010.
• Have, or create a Windows Live ID.
• Redeem your Tech Guarantee before October 31, 2010 by visiting www.office.com/techg.

The Office 2010 Technology Guarantee will be fulfilled online, via download, at no additional cost.

Head on over to TechNet Blogs, to read the whole article.