Don't forget guys, Google has tons of utilities online. This replaces the need for things like Word or Excel to be accessable, when you can open and edit MS office documents online. Remember that Google has web based storage options in Google Docs. This would be great to carry around, boot from real quick on any PC, and then access your regular documents from your Google account once you've connected to the internet. I'm no pro in Google Docs (in fact I hardly use it), but obviously online storage and management is the way Google is pushing, and they're utilizing Chrome OS to set this trend in motion.
Google already stated they have no plans to make Chrome OS a replacement for Windows OS's - they intend to keep it a lite web based portable OS for netbooks, laptops - and something you can pop on a USB drive and take with you anywhere
Chrome OS could rapidly become the BEST way to sync and store your files over all your devices.
Has Google ever let us down before? Have a little trust.