A recent article in the Wall Street Journal reports on a survey that shows an increasing demand for Linux skills, which is reflected in an average salary increase of 5% last year for Linux developers and administrators. Survey respondents indicated that they would use increased bonus and stock option offers to attract Linux technologists. Many companies are also offering flexible work schedules to be more competitive. See the WSJ article for more details...

What is the level of skills needed please?… Experts or any developer who has will power and ability?