Yawn!
These comments demonstrate exactly why Linux will not get onto the mainstream desktop - bickering and lack of focus.
Microsoft and Apple are companies with goals. They pay people to write software, test, demonstrate, market etc. Most Linux distros are written and updated in dark basements by unpaid unknown geeks. So the company that wants to replace their computer system is presented with a spotty geek in jeans and a smiley face tee shirt trying to get them to change to a new system which won't run some of their mission critical systems/programs. Hmmmm. Then enter the MS/Apple salesman in his suit, explaining that there will not be any problem and all will be sorted because their software WILL work and has been tested on their platform. Spotty Geek or professional salesman? I know [if I was a potential customer] which one I would go for.
Linux needs to get it image act together if it wants to compete with Win/Mac. People need to stop whining and get Linux sorted if they want it to compete against the big boys. But it's not going to happen. The comments from the Linux fanclub prove this. The fanclub will alway be the dog chasing it's tail, complaining bitterly about MS dirty tricks yadda, yadda, yadda. ITS OLD NEWS! If you really want Linux on the desktops of big businesses, then get ONE company together, create the distro that can compete with Win/Mac and SELL IT!
As for customers being dumb - well duh! They are not IT specialists! They are Doctors, Solicitors, Architects, Teachers etc. They have better things to do than try to figure out how to recompile their PC's OS core every time they want to insert a USB memory stick. The last thing you want to hear from your Solicitor is that he can't make it to bail you out of jail because he is stuck trying to get used to his PC's new OS!
The most incredible thing is that most of the people posting are IT professionals. You probably make your money by supporting Win/Mac systems. Great. Get rid of the big 2, give the customer a brilliant stable OS which never needs supporting - great way to work your way out of a job!
Are MS and Apple worried by Linux? No. Why? Because the die-hard Linux fans do all their hard work for them, by standing around bleating on blogs etc. instead of joining together to become a coherent serious competitor that can focus on the needs of the business customer and all that marketing and developing entails.