Unladen Swallow 2009Q2 released

The language itself doesn't make a program more efficient. Especially, badly written C/C++ applications have the tendency to use up much more memory than it's necessary due to memory leaks. In my experience the average developer lacks the skill to produce C/C++ code without memory leaks, buffer overflows, etc. That's where python, java, C#, etc. come into play, they eliminate a number of classes of bugs. I think there are a many people coding in C/C++ that should really not use such languages.