From today's New York Times:
"Of all the fights facing Mr. Obama as he prepares for the White House, one of the most maddening for him is the prospect of losing the BlackBerry that has been attached to his belt for years.
"It is, he has vigorously argued, an essential link to keeping him apprised of events outside his ever-tightening cocoon."
I love my BlackBerry too, and would miss it. But I'm guessing that many people interpret this as missing the ability to read emails, or to text friends on-demand.
But those are not the primary reasons.
I would hate to lose access to my personal calendar and contacts, and to all of the instant connections I have to media, sports, and other things I'm interested in, through the various BB apps I've installed.
That's the stuff I'd really miss. And I think he will miss them, too.