I used to sit and watch V-22's all day when I lived in Hurst, Tx next to the Bell plant. They have a small test landing area just off Raider Rd. Those things are amazing. The transition from hover to level flight is just seconds. It's MUCH faster than a Blackhawk, carries a heavier payload and is more fuel efficient. It is also very, very quiet compared to a helo.
It will do a fine job for the Marines. I haven't heard anything about it, but I suspect a "Spooky" version will be made by the Marines. You could pack that bad boy down with with some serious firepower. I think the best application will be SAR with the Coast Guard.