After seeing their massive drop in stock today, my prediction is that less than a year from now Microsoft will buy RIM. It makes perfect sense, they can compete directly with Apple on the consumer side, while dominating the enterprise sector, which they already do with their server products.
On top of it, if they bought out RIM, they would have instant access to a tablet device, something they’ve wanted for years. And it will tie in perfectly with their entire office suite, which it already kind of does.