I found this really cool tool to create Regular JavaScript from C#. You can find it here Script#.

Other then that there is not much more to say other then trying out this cool tool. It has been mentioned that Microsoft has used this tool to create some of the JavaScript found in SHarePoint2010.

Here is some general information about Training and Exams for SharePoint 2010

http://www.microsoft.com/learning/en/us/training/sharepoint.aspx

They say this summer (I think July) there will be certification exams available.

Here are the links to the exam information. I will update the links to 70-667 and 70-668 when they come available.

70-573 TS: Microsoft SharePoint 2010, Application Development
70-576 PRO: Designing and Developing Microsoft SharePoint 2010 Applications
70-667 TS: Microsoft SharePoint 2010, Configuring
70-668 PRO: SharePoint 2010, Administrator

And if you are a Microsoft partner

SharePoint 2010 Ignite Online for IT Professionals

SharePoint 2010 Ignite Online for Developers

More information about Ignite Online training on the Microsoft SharePoint team blog

UPDATE: SharePointBuzz has some more links to some training sessions. Here is the link.

http://www.sharepointbuzz.com/archive/2010/04/23/sharepoint-2010-developer-hands-on-labs-and-certification-preparation-sessions.aspx