Can IBM redefine the future of email?

I was in the middle of the great email battle between Microsoft and IBM [Disclosure: Microsoft and IBM are clients of the author] in the 1990s and there really wasn’t much competition. Microsoft had Exchange, which had its greatest power in its focus on users. IBM bought Lotus to get Notes, which had stronger administration tools and a far better focus on collaboration, but sucked at email. In the end, Microsoft dominated, massively, and Exchange is the recognized standard for business ema