I'll point you in the direction of:
http://www.securiteam.com/securitynews/5TP010UPFU.html
Basically you can purposely write HTML to crash browsers. Which people will, and currently, do to exploit. As pointed out at the moment Chrome is the most 'vulnerable' web browser out there.
Without going through your replies point for point (or commonly known as pointing out the blooming obvious) whats the point in having an operating system, be it linux, windows, mac os, chrome os, that doesnt support an offline mode. Every operating system listed previously (apart from Chrome) does. Whats the point in releasing an operating system that's not compatible with 96% of of the market? What's the point in not being able to use your laptop/whatever when you are mobile and not able to get web connectivity?
Get over myself? What for? For pointing out fundamental flaws?
M.