Are Roosevelt Island and Long Island City Comparable New Condo Development Markets?

The foundation has been put in place and the big construction crane just arrived at the new Hudson/Related Riverwalk condo development on Roosevelt Island. Pre-construction sales of the condo units are supposed to begin soon - this month? Where will price points begin? A recent sale during the summer for a 1 bedroom at nearby 455 Main Street on Roosevelt Island was reported to be in the $800's Sq. Ft. range but will the changes brought on by the credit crunch and mortgage crisis impact the new development?
For comparison purposes a look at new condo developments in nearby Long Island City, Roosevelt Island's East River waterfront neighbor, may be useful. Via Curbed, real estate broker and blogger A Fine Blog reports on several new condo developments that have recently opened their sales office in Long Island City. According to A Fine Blog:

Two new and affordable condos opened under one (on site) roof on Saturday, and the initial returns looked to reinforce the notion that the condo market is still hot, in LIC at least. One Hunters Point and Hunters View Condominiums held their long awaited opening on Saturday...These condos have numerous pluses and minuses. The pluses are prices from the $600's per square foot, terraces, and upscale finishes. The negatives, include ordinary exterior architecture and locations that may be noisy- one hangs over the Hunter's Point train yard, the other over the Pulaski Bridge to Greenpoint. Still, views at One Hunters Point, over the train yard, are South and unobstructed and likely to stay that way for some time...The PowerHouse, although not publicized, is open for business, and if there are no huge price amendments, I can tell you, the project exceeds all of my expectations. The amenities are exceptional, the prices, also from the $600's per foot are great, and the finishes like the all Viking kitchens are the very best (O.K., I'm a sucker for Viking). Also, The Foundry LIC and The Crescent Club (LIC North) are expected to open imminently

The Real Deal on the the Long Island City condo market reports:

In the initial offering, the 177 apartments at the Powerhouse will average in the mid-$700s per square foot, starting from $450,000 for studios. The price point is between those for two other new high-end condos in Long Island City: Arris Lofts, which is farther inland, averaging around $700 a square foot, and Toll Brothers' 5th Street Lofts, which is right near the Powerhouse, averaging $800 a square foot.

The question to be answered is whether Roosevelt Island and Long Island City are comparable new condo development markets or is some other waterfront market such as Dumbo or Williamburg more appropriate?