Ziggy told me told that Microsoft is trying to patent IsNot.
One of the biggest boons to software productivity has been the advent of powerful scripting languages such as Python, Perl, Ruby, and many others. I agree with German developer Falk Bruegmann when he says that "we should expect to see a trend from languages that put the main emphasis on efficiency to languages which put their emphasis on productivity and scalability... I expect dynamically typed languages traditionally used for scripting to be enhanced for better scalability by better package systems, better tools or improvements in the type system... Such "enhanced" scripting languages are well-positioned to take away market share from traditional system languages."