Could this be why IBM is looking at RHEL:
Who was around 1980 and followed what happened to the IBM PC when M$ was supposed to be writing PCDOS and then OS/2 all with IBM's money.
Now that M$ is starting to look at Linux, IBM is afraid that M$ will own every server and desktop that isn't running Solaris or AIX. Also, IBM has invested at least $2 billion in RHEL.