I never was a big fan of easy-ressing in DnD. Anyway I don't agree on ressing is MMORPGish, at all. In 3.x (and previous editions) you had so many ways to come back to life, including the quick and easy "go pay the cleric in the nearest church", it was infact hard to believe enyone in the world could actually dye once and for all.
What I'm most concerned about is the lack of any resurrection-penality in 4E. No CON lost, no negative levels (at least from what we heard from the devs). This is actually more of a trouble than any crazy-epic power, since it basicly means resurraction doesn't really have a cost, in the end. It was also said that "not everyone in the world is able to be resurrected, only the ones with a great destiny to fullfill", wich should be read as "only players and important NPCs".
I guess I'll have to house rule things, as I did with 3E, no great news here. But please, the concerns with dying in DnD are something wich really don't have nothing to spare with MMORPGs. You could even say dieing in DnD is videogamey, more generally, since the most of them basicly let you continue from the last save/check point everytime you die. I don't really think that's the point