Interesting Mr Bond .. via Scott & Rui, basically the Windows Server Backup utility that ships with Windows 2008 will support Exchange 2007 backups.
Although streaming backups have been deprecated for Exchange Server 2007, it is still possible (and supported) to use this kind of data protection with the NTBackup utility from Windows Server 2003. Microsoft dropped Exchange streaming backup support with the release of Windows 2008, a decision that was highly contested by the IT Community in general.
So, the good news is that a new Microsoft plug-in for Windows Backup that will do Exchange VSS backups will be released this summer.
And yes, thank you Ari for point me to this too