Watch this webinar to discover new and updated Force.com features coming in the Winter '13 Release, including:
Developer Console Enhancements: The Developer Console makes developing with Apex code even easier by adding tools for unit testing, querying and performing DML operations on your data. We'll also cover the new command line window and the flexibility to tailor the console layout.
Visualforce Enhancements: Visualforce charting is now generally available. In addition to being available to all Visualforce customers, charting features such as new chart types, control over color schemes, and enhanced rendering control.
Apex Code Enhancements: New interfaces to support testing callouts for both HTTP requests and for WSDL generated code, new string methods, additional JSON support, and non-primitive types in Map and Set keys.