Grumpy_Mike:
Well Linux sucks for doing anything remotely real time.
Some people realize that we should write kernel-mode drivers for real-time tasks and reserve app-mode for user-interface code. Some even go as far as creating successfull products and businesses. Others patch the standard distro and reconfigure the kernel for RT app-mode support when separation of RT and UI is not required/desired. Then, others again claim to their ignorance and spend their life waiting for the next big thing.