Currently Seadragon is promises following:

• Speed of navigation is independent of the size or number of
• objects. Performance depends only on the ratio of bandwidth to pixels on the screen.
• Transitions are smooth as butter.
• Scaling is near perfect and rapid for screens of any resolution.

You can watch demo here or for more info visit live labs.

Microsoft is going to make the MS Office file formats for Word, Excel and PowerPoint available to ECMA International, the standards body, which will develop the documentation and make it available to the industry.

Using the documentation others will be able to write their own editors which can generate MS office documents and also this will mean that one no longer needs to have a licensed copy of MS Office to open or edit Office documents.

ECMA will take at least 18 months to make these formats available and it will be another 24 months before we can expect any meaningful applications can be created to make this available to the public.

Now this make it very clear that Microsoft has an alternate product due to Demo in 12 to 18 months which will replace the need for MS Office.

Find related article on following link
http://news.ft.com/cms/s/e9f5c0f8-5ab7-11da-8628-0000779e2340.html