Ahhh that looks awesome, Google is taking down yet another overly popular Microsoft product with this one, for sure.
That feature that lets others view it if you let them sounds quite strange, if it's possible then surely there's going to be a way to do it without permission?
Either way it looks like Excel is going to be made redundant and inferior. Nice.
I didn't sign up for it yet, but I can't imagine this being any better than Excel, or even OpenOffice... so why should I sign up? So that Google can collect even more specific data on me? No thanks!