Microsoft has released Microsoft Expression Design Service Pack 1
>> Microsoft Expression Design Service Pack 1
>> Microsoft Expression Design Service Pack 1 FAQ
>> Microsoft Expression Design Users Guide
Microsoft Expression Design is a professional illustration and graphic design tool that lets you build compelling assets for both Web and desktop application user interfaces.
You can get specific information about the SP1 update in the Microsoft Knowledge Base article (942686), Description of Expression Design Service Pack 1, or the Microsoft Knowledge Base article (942685), Issues that are fixed in Expression Design by Expression Design Service Pack 1.
>> Microsoft Expression Design Service Pack 1
>> Microsoft Expression Design Service Pack 1 FAQ
>> Microsoft Expression Design Users Guide