This is dangerously blind acceptance. Apple is a company and a core goal here is, indeed, keeping costs low and profit high. They may go with 1GB, but only because it is acceptable, not because it's optimal.
Really? I think it's funny, albeit not really surprising at all, that the first post on this article is from someone who directly correlates the ultimate quality of a rumored product to their own feelings of hate toward the Android platform/users and expectations of Apple's also possibly completely non-existent rumored product. I can only hope that you are the minority and other Apple users possess some shred of objectivity.