For the last couple of years, coffee has been a hot property: Burger King acquired Tim Hortons earlier this week in an attempt to get to the front of the breakfast line -something that has been increasingly coveted by 'quick service' joints like the King. However, McDonald's is at the top of that food chain, bringing in $10 billion in sales all before they sold a burger last year. Other coffee companies have been tabbed as hot properties, and there are startups galore coming into the coffee arena, promising a better brew. But what about Dunkin Brands?