Pharo, like GNU Smalltalk, has a command line mode so that you can use your favourite editor. However, without the live coding IDE, you lose the biggest benefit of the language: highly accelerated development and enormous programmer productivity.

Yes, Pharo (and Smalltalk) is a world unto itself but that's the price you pay for a highly productive, easy-to-program software development environment. How are you going to achieve this by retrofitting to an archaic methodology based on text files and over-engineered IDEs like Visual Studio and Eclipse? Java and C++ impose severe constraints and compromises in this respect.

At the end of the day, it's all about a programmer's ability to adapt to new methodologies. If they remain rigid and stick to old, familiar ways, there can be no great improvement in the way we create software.