If you go to use GWave if you log in via Internet explorer you will see a screen saying either use one of these browsers chrome safari or firefox or download this plug in google chrome plugin or you can try it without and oh lordy is it slow if you try ie 7.
Google and Apple are gunning for MS and know most people are not power users they may have a smartphone and some form of netbook or laptop maybe even a PC.
But many are seeing either google with its free and opensource products (I think they were saying after Nokia symbian/mameo in a few years Android from no where is going to be the biggest OS on smartphones) or Apple if your prepared to pay a little more for a nice UI etc.
MS are stuck in the middle they cant make systems as user friendly/flawless as Apples unless they make MS brand pc's surely and if they compete with google and give the OS away. Whatever they choose they will need to rethink
what they do next.
Im also convinced to a degree Win 7 will only really break into the office market rapidly if consumers start to use it and I think google know this and why its rushing to get chrome out.
With google Chrome os I could see MS seeing a sharp reduction in its usage in the home pc/netbook market if the OS is free even if not perfect if it does youtube, wave and social media, IM and browse the interweb and lets you read and create documents. How many people use google as their homepage?
People will then be familar with XP and chrome at home but wont be intrested in learning a third UI surely? They also wont be nagging IT for that new windows...
Many say why Vista failed to enter the office market was partly due to users having such terrible experiences on home pc's so there was no nagging or asking why we not using Vista.