How SharePoint 2013 preview different from SP2010

This is the first in my series of blogs that compares new SP2013 preview with SP2010

1. Web Analytics in SP2010 is discontinued and Analytical Processing for SharePoint 2013 is part of Search Service. Microsoft claims Scalability and performance improvements in its new avatar. Analytics processing component in SP2013 runs analytics jobs to analyze content in the search index and user actions. Looks like the analytics feature is more integrated with search features than an independent entity the way it is in SP2010. The other disappointing thing is the SP2010 analytics info like browser traffic, top users of a site, referring URL, quota usage analytics wont be available.
2. Visual Upgrade is NOT available; replaced with much more comprehensive upgrade process called deferred site collection upgrade. Visual upgrade was limited to old master pages, css and html files but the new deferred site collection process the additional areas including SPFeature. There is no direct migration path from MOSS 2007 to SP2013. The Moss2007 site must move to SP2010 before upgrading to SP2013. Another thing the upgrade to SP2013 is irreversible. Due to All these constraints - Im doubtful about the success of this change.
3. As part of simplifying the site template selection process, the following changes have been introduced
• Document Workspace  site template has been replaced by the Team Site site template
• All 5 Meeting Workspace site templates are not available. This looks like a strategic move to promote other Microsoft products like Lync (to conduct online meeting), OneNote (to capture Meeting notes), Team Site / MySites (to share meeting minutes etc). Microsoft annouces the existing site will  work till a major version release.
• Personalization Site, Group Work Site, Visio Process Repository site templates have been removed because of less usage in SP2010. Microsoft annouces the existing site will  work till a major version release.
4. Because of a design limitation - workbooks with external data connections that use Windows Auth cannot be refreshed in browser; you will be asked to open in excel client.
5. Due to less usage , to reduce security issues and to simplify number of ways to connect SharePoint - The imaging web service for creating and managing picture libraries would be removed from next major release.

More to follow...