I think the use of grandma friendly its an error. It must be affordable to work whih everyone that needs or wants to.
I dont say its a no good thing the chromium os, but I dont think it fits everyone needs , or it can take other approachs to do the same.
Imagine this, a user with limited/low bandwith that expects to work with a chromium terminal..and needs to work now.
Well, you are gonna to tell , there is little users in this side, but there is. And think of the say , its not wise to put all the eggs in the same basket (or like it must be saying in english)
It recalls me of the time I was working in the it and we were selling machines with light versions of * linux distro , and then for ripping a cd you had to download the whole gnome 2 files over 28.8kbps.