I know of a collaboration platform about to launch its 2009 version .. at the bottom of the right-hand column on the screen is a permanent feature labeled "Add A Widget".

At some point in the future the IT department will no longer be telling you which digitial ballpoint pen (metaphor alert ! ;-) you must use ... you will just plug the one you like most into the platform. I believe some of you are calling this PKM a key aspect (personal knowledge management).