"Instead, it will use instant messaging and other tools to communicate among staff.???E-mail for a long time delivered on the notion of increased speed, reach and efficiency,??? said William Powers, author of ???Hamlet???s BlackBerry.??? ???But the more you start cc???ing 50 people, just in case, and replying all to those 50 people, the more e-mail starts to undermine itself.???But compulsively che" . . . .