Platform propaganda and misinformation is nothing new, in the distant past PC MSDOS owners and even some PC stores spokespersons claimed that the Amiga was only useful for playing games.
Many stated a GUI is for someone who cannot use the CLI (The Amiga both had a GUI as well as a far more powerful CLI). Many more simultaneous colors (4096 on Amiga, 2 on PC and Mac) were mainly useful for games and some very specialized uses. Of course today we know companies like NASA used them for telemetry, Disney used the machine to animate the Lion King, Dinosaur and many others, Terminator 2 morphing was done on the Amiga, Babylon 5 and Seaquest special effects were done on Amiga, US and Israeli Air Force used them to train pilots using Amiga based flight simulators. The Amiga for quite a while had the most advanced fully multitasking office applications (copy and pasting images from a paint program or maybe a colorful spreadsheet pie chart into a word processor was all already possible in the 80s) and most advanced and multi-functional artistic programs, visual as well audio related ones (no wonder as the Amiga offered advanced stereo sound while the Mac was silent and PCs could only beep), etc. But still the Amiga was never that great of a success in the States (in Europe the platform did much better, with marketshares in some well educated countries like Sweden up to 90%!). Main reasons I think, mass PC advertising and mass misinformation.
I really hope some of the PS3's potential will not be wasted due to similar misinformation campaigns, the whole internet seems filled by PS3 misinformation and IMO pretty much faked reports of Doom and Gloom...