I myself have planned two cons (Warbirds Pensacola and Dayton in 2001 and 2002), and without any significant assistance from the parent company (heck, the seed money came out of our pockets), so I know what it takes to pull them off.
With that said, it is just shameful that there wasn't an official announcement that there will or won't be one in 2007. All this "unofficial word" nonsense is just that: nonsense.
I mean, at the end of the year, when no Con has happened, people will be disappointed no matter what, so why not simply say to the community now "We're sorry, but software development has consumed too much of our time to plan a Con worthy of attending. We're looking into next year already." At least this way, though we may be disappointed, we'll at least know that a Con wasn't just forgotten.
-Llama