Precisely. These days, with the advent of easy to integrate Javascript/Python/Ruby/Lua scripting languages, there is very little reason to write an entire appl

Precisely. These days, with the advent of easy to integrate Javascript/Python/Ruby/Lua scripting languages, there is very little reason to write an entire application in C. My last two projects, I wrote the business logic in a scripting language, and all of the performance bound stuff in C. There are a few gotchas the first time you do this - your bindings code needs to fit with the object model that you're using in C, you need to force all calls into the VM onto the same thread etc. I ended up just writing my own IDL parser/bindigs generator, but once you've done that once, you can use it for all of your future projects, and it really isn't that much work. The pay-off is huge - you can arbitrarily move a module of code between C and your scripting language depending on the optimal split for performance/ease of programming.