Voice as text in Exchange 2010

Microsoft's announcement of Exchange 2010 provides an overview of some very interesting features in the new release, most of which were discussed in the sessions I attended at a Microsoft event on the Redmond campus earlier this week.

Among the most interesting from a usability standpoint is the Voice Mail Preview, a feature that will provide some or all of the content of voicemails converted to text and delivered to Outlook. This should prove to be a useful feature for most users, particularly those of us who prefer email to voicemail, but it raises some interesting implications about the discoverability of this content. For example, will an organization that uses this feature want to make the content of voicemail part of their e-discovery exercises as they do with email today? Are there good reasons for not doing so? Will this lower the bar on e-discovery by making judges more likely to approve the review of voicemails? What will this do to storage?

I think Voice Mail Preview is a great feature and one I'd like to have today, particularly when traveling, but it raises some issues that I'm not sure everyone has considered fully. What do you think?