According one person familiar with the matter, each model will ship with 4GB of RAM, including 2.4GHz and 2.66GHz 13-inch models, 2.4GHz, 2.55GHz and 2.66GHz 15-inch models, and a 2.53GHz 17-inch model.
Additionally, the new line may include three different types of screens options: Glossy, High Resolution Glossy, and High Resolution Glossy with Anti-Glare. A second person familiar with the mattered adds that at least some models will support 512GB of Solid State Drive (Flash) storage.
A list of part numbers and specs for the new models, as can be seen in certain inventory management systems, are as follows:
The Apple Store is currently down, so I expect these to show up in the next couple of hours.
Update:Though of little material value, here are the logic board part numbers :
661 - 5566 for 2.4
661 - 5479 for 2.53
661 - 5480 for 2.66
and the display part numbers. In both cases, these pertain to the 15-inch models.
661 - 5483 glossy
661 - 5477 hi res glossy
661 - 5478 hi res glossy with anti glare
Thanks, Mr. X