Analysts at International Data Corporation (IDC) posted a press release Wednesday highlighting the rapid decline of IBM’s AIX and P-Series hardware. Along side the drop in proprietary Unix systems is an associated rise in sales of X86 servers running Linux. IBM has clearly identified this as a long term trend, investing $1 billion dollars in Linux development on Power systems. With the reported 20% drop in sales, the writing my finally be on the wall for AIX.