I know that is the popular thing to do now, be vague, I think it only works if you target market is techies (notorious early adopters no matter the technology).

Home and small business owners want to know how your product is going to make them more efficient. Your sentence above is a pretty good draw. Try not to use the word "just". You have a unique value proposition, right? Don't downplay your strength. Selling is no time to be self-deprecating or overly humble.

I don't really understand your copy at all.

"Access the Power of Computing with friendly user interface in a few minutes!"

What does this even mean?

"Cut your costs by up to 70%! No contract or annual payments! Simply stop or resume using the service according to your needs!"

What costs? Marketing? Technology? Personnel?

Why would they ever want to host their websites on the cloud as opposed to shared hosting? What's the value prop?

I mentioned several reasons on the launch page, and made it as clear as possible.

Its reliable.. its scalable.. you pay only for what you use without any commitment.. and its very, very cheap.

Yes but this is a website... it has to be up all the time, so you only pay for what you use turns out to be the minimum unit.

Sure, you can scale when it comes time to it but the intersection of people looking for scalability and very very cheap hosting in the SMB arena is small.