Microsoft Web Apps and Co-Authoring

I can't tell you how many times I have worked in a group on the same document simulataneously.  Of course, we had to use Google docs because it allows co-authoring.  Just received an email announcement that Microsoft finally allows for co-authoring in their web app Skydrive.  You can read more about the feature on the Microsoft blog at  http://blogs.msdn.com/b/officewebapps/archive/2011/07/07/10184240.aspx

That feature may prompt me to use my Skydrive account more.  Until now, I have used it as a cloud computing backup for critical files (one of several backups :-).