IT Professional track
Before taking the 70-668, 70-667 has to be passed.
70-667+ 70-668 = SharePoint 2010 MCITP (Microsoft Certified IT Professional).
70-667 TS: Microsoft SharePoint 2010, Configuring
Microsoft Official Curriculum: Will cover configuration of SharePoint 2010 including deployment, upgrade, management, and operation on a server farm.
70-668 PRO: SharePoint 2010, Administrator
Microsoft Official Curriculum: Will cover advanced SharePoint 2010 topics including capacity planning, topology designing, and performance tuning.
Developer track
Before taking the 70-576, you need to pass the 70-573.
70-573 + 70-576 = SharePoint 2010 MCPD (Microsoft Certified Professional Developer).
70-573 TS: Microsoft SharePoint 2010, Application Development
Microsoft Official Curriculum: Five-day instructor-led course designed for developers with six months or more of .NET development experience. Course covers what you need to know to be an effective member of a SharePoint development team using Visual Studio 2010.
70-576 PRO: Designing and Developing Microsoft SharePoint 2010 Applications
Microsoft Official Curriculum: Five-day instructor-led training course designed for development team leads who have already passed the Developing on SharePoint 2010 technical specialist exam. The course covers choosing technologies for and scoping a SharePoint project, best practices for SharePoint development, configuring a SharePoint development
All SharePoint 2010 exams and certifications will be available in June 2010.
For more information: https://partner.microsoft.com/40121316?msp_id=sharepoint2010ready