Forget Windows 8
I work for a company that has several thousand desktops, laptops and phones.
We are still on XP and after the best part of 6 months we are finally ready to accept windows 7 will work on our 600 odd legacy apps/programs.
Hell we only just th last fortnight went fron IE6 to IE8 due to compatability issues.
After we finish rolling out Windows 7 we will be planning our next upgrade, the hardware. For that we are looking at thin clients connecting to servers so BYOD is made easier and security also much easier to control.
Will also made updates and software access etc a lot easier.
We will not be looking at Windows 8, more likely would be to switch the OS from windows to something else instead as the desktops won't have an OS and anything that can access the virtual desktop like say a linux distro will do fine.
The only people who will be buying Windows 8 are those with no choice as thats what the OEM has put on the pc they get from Currys etc.
As to the whole pc, talet and phone running the same OS how stupid do you think we are ? here's what would happen, virus gets on someones phone, they bring it into work, everyone equipement including their phones are infected, yeh I can see us allowing that to happen then. We had a big enougth problems with someone bringing in a virus that screwed up our excange servers with emailing all contacts over and over again a few years ago.
No, Windows 8 has no place in the corporate world which is still rolling along on XP and sees a big enough change and training headache going to 7.....