Our developer wiki acknowledges the need to prevent JavaScript collisions by uniquely naming functions: http://developer.newsgator.com/wiki/index.php?title=Avoiding_Javascript_Collisions
And only recently have we added information about preventing CSS collisions, which can occur with viral widgets. Our widget framework provides a number of ways for keeping your widgets looking top notch no matter where they reside. For best practices and tips for tackling collisions please visit the new wiki article that covers this: http://developer.newsgator.com/wiki/index.php?title=Avoiding_CSS_Collisions