Here is a quote from a press release issued today:
Macromedia is also introducing a new tiered licensing model to bring the power of Flex development within reach of every professional application developer, while also offering value-added capabilities that scale to meet the needs of the most sophisticated enterprise projects. Flex Builder 2 will be sold for less than $1000 per developer and will include the ability to develop, compile, and deploy Flex applications that connect to XML and SOAP web services with no additional charges or server licensing required. Flex Enterprise Services 2 will be licensed on a per CPU, per project, and enterprise license basis to offer the development efficiency, performance, advanced integration capabilities, and testing support that advanced applications will require.
More details to follow. But for now, this means that ColdFusion developers will be able to build CF powered Flex apps without the price tag being an issue. And for those that need the enterprise services (and many will, I suspect), that will be an option, too.