Most people hate that fact.
This article goes in depth to explain why it happened, as well as what it is being replaced with: UTI.[/url]
Worth reading, if you're curious. (It's long and boring otherwise.)
Snow Leopard's abandonment of Creator Code metadata, used to open a file with its creating application, has some users are worried that Apple has killed off a core Mac-centric feature. Instead, Apple has invented a superior alternative for the old Creator Code in order to support a variety of new features. Here's why, and what the new Uniform Type Identifiers offer.