I agree with your point (and with the EDIT). All the big guys (google, MS, yahoo, ...) want to host our files these days, and they provide us with sharing, storage and simple editing facilities for docs and pics. They also do communications, calendaring, news and blogs, etc. I think SMBs will want to use that infrastructure and the big issue will be (as usual) integration.
So, terpua, don't add your servers to the picture in terms of where the files live. That just adds complexity and another point of failure. I'd much rather you help me sync my devices with those services or the services among each other. Sure, this is being done already, but there are a gazillion special cases that people will need support for, and a lot of them involve syncing. I would try to find a few of those cases and make your solution simple for end users to understand.
You may be doing some of this already but I can't tell from the info on your website. There should be an exhaustive feature list on your website.
So, terpua, don't add your servers to the picture in terms of where the files live. That just adds complexity and another point of failure. I'd much rather you help me sync my devices with those services or the services among each other. Sure, this is being done already, but there are a gazillion special cases that people will need support for, and a lot of them involve syncing. I would try to find a few of those cases and make your solution simple for end users to understand.
You may be doing some of this already but I can't tell from the info on your website. There should be an exhaustive feature list on your website.