im assuming youre a sony fan... what if metal gear solid was multiplatform and held back by that, I mean the game took full advantage of the ps3 and would have been different. Blizzard has a vision, only possible on pc and more profitable in the long run. On pc dev cost are lower, no console fees, no short term shelf life, a user community to keep things going (how many bought warcraft 3 for dota), and best of all for them no time limitations on development.
I think some console only gamers should sit down and think about this for a second.

@kevnb

Ok pretty much nothing you said made any sense.

Does Blizzard have a vision for Diablo 3? Sure but from what we have seen it's not like it's going to be pushing the PC to it's limits or anything. It will be a game that could easily run on both the PS3 and the 360. So that there is a non issue.

Considering Sony let Valve have steam works on the PS3 I would bet that they would allow Blizzard to have Battle.net there for allowing for that community you are talking about. As well as Multi player. Mods and all of that stuff can still work perfectly on the PS3(Unreal 3 anyone?) Blizzard has the pushing power to make all of that happen.(maybe MS would not play ball on the 360 but I don't see why Sony would not.

Time isn't a issue. Blizzard could either have another studio do a port while they are working on it(like most others do) or they could do it themselves before ever releasing the PC version(fans have waited forever already another few months for a port would not make a bit of a difference).

Really if you think about it there is NO reason for them to not make the game on console. The amount of copies they sell would easily over come any negative in cost to do the port or anything of that nature.