Death of E-mail
Ray Ozzie discusses the death of e-mail as a work process tool. Of course Ray has an interest in this as his Groove application provides encrypted shared workspaces for workflow and sharing. If you rely on e-mail for document sharing or an Intranet, Groove is a large step above and beyond these technologies. E-mail was not designed, many many years ago, for the type of tasks and volumes that are required of it today. As every work environment struggles with privacy and security most e-mail solutions do not provide a sufficient level of support, particularly with e-mail storage limitations.
E-mail also does not often provide portability and tracking across various work environments. Groove however does do this. I was testing and using Groove in a beta mode and the free version a year or two ago. Groove had these capabilities then.
Yes, secure e-mail is available on many e-mail platforms, but the portability and retention of state of work does not work as easily on other applications. The one downside of Groove for me is it does not yet have an OS X version,