The logo can be just Backupify, or can be Backupify.com. The word Backupify can be the core of the logo, or could not be part of it at all. It's up to you. It does not have to use our current color scheme, but it should at least look good with the current colors if we decide to keep them.
The #1 thing we need to convey is trust and security. The second thing we need to convey is some idea of what the product does - connect all these accounts together in a single backup system. Connectedness, the idea of a data hub, is something good to incorporate too.
We have many corporate clients, so we don't want to look too Web2.0ish, which means things like reflections are probably not going to work.
The logo does not need to include a tag line. But if you have a good idea that you want to try for that, feel free.
You can also think of logos related to cloud storage, downloading the cloud, SaaS, etc.
If you want to sign up for an account to experiment with the site, we are willing to give you a free one year account at this link https://secure.backupify.com/smallbiz so that you can better understand the site and what it does.