Jonathan Schwartz relates an anecdote, illustrating that FUD is still being used by some of your larger firms out there:
It's also amazing to hear what our competition's been telling some of our European customers. IBM told several that they couldn't port their apps to Solaris 10 because Sun is withholding information - but only on Opteron. Which even the customers knew was ridiculous. It's tough to withhold information when the product's free, and code's open. (They offered another customer a "private version of WebSphere on Solaris 10, supported by IBM Global Services" - um, no thank you.) I'd like to thank the customers that continue to demand choice, and the ton of partners we're signing up to deliver it. I think we've cleared 1.5M license downloads.
They even do this on the niche level - go back to the SDTimes quote I pulled from an anonymous IBM source.