We've had web-based word processors for fifteen years but Google's web-based word processor is different because it's from Google?
It's not different because it's from Google, it's different because Google is behind it. Remember "nobody ever got sacked for choosing IBM"? Well that's Microsoft's biggest lock-in method now. It's not like Office is good at word processing, spreadsheets or presentations. In fact it's lousy at all three and hasn't improved in nearly ten years.
But try getting your boss to move the company across to a platform from Gee Whizz Inc, market cap $20,000. But he's heard of Google. His business magazines constantly gush about them, so they must be good.