Microsoft have published a case study on creating a Highly Available Microsoft Office SharePoint Server Environment by Using Microsoft SQL Server 2005 Database Mirroring in a Windows Server 2008 Virtualized Environment - http://download.microsoft.com/download/5/0/0/500ABD93-DF75-4B30-856E-63D39CB2A1C3/MOSS%20Stretch%20Farm%20Case%20Study_update.docx. It came out end July, so I'm a bit slow off the mark.
This solution and the associated scripts deliver a load-balanced, highly available MOSS farm for a fictitious Financial brokerage firm with guaranteed no data loss. The results were outstanding - 2 second failover time and zero loss of data in a geographically distributed configuration - and SharePoint 2007 is not even Mirroring-aware like 2010 is - in 2010, you just point to the database and the mirror and it will automatically switch for you.
Companies who tout themselves as heavy-iron solutions must be starting to plan their "Points of difference" arguments for the 2010 wave. Question is, how much shorter are those lists becoming? Even IBM must be starting to get nervous... I'm working with 2 different companies who both own Enterprise licences for Domino / Lotus Notes... and who have actively gone out and purchased SharePoint Enterprise CAL's for every staff member. Thousands of them.
I'm starting to look forward to sales meetings :)
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