I looked into the android os a while ago. you can get a live cd from google and boot from it for free to sample android before you use it on your phone.

Never looked into chrome OS, but it's probably free just like android and most google products. afterall google wants to take over the world, why would they make people pay for it?

might try it, seems interesting
but I still need itunes n stuff lol because my web browser isn't the only function I need.

I like the idea of focus your OS around a web browser, but I still want the function of a normal OS in the background