Do you mean offering your idle storage for others like wuala started? I would be happy to have my data synced between my 2 desktops, 1 laptop, 1 ubuntu laptop, 1osx imac and my 2 NAS at 2 locations it looks enough to be distributed for me.
I agree that there are more "cloud storage" providers, but what would make SyncApp unique, is a distributed cloud storage.
They can take down Mega(upload), they can force storage providers to provide a copy of your data.
If SyncApp could be used as a distributed cloud storage, it would be virtually impossible to remove the data.
if for example WikiLeaks wants to store some documents, there wouldn't be a party to ask to take the data offline.
People suffering from represive regimes, could store their data and remain anonymous.
And trusting Bittorrent with your data is very easy if you are able to encrypt it,
Symform also does this. While I love the idea of distributed storage, in practice it has been impractical. Data sitting on other people's machines can be brute forced, even if encrypted. I agree with the other folks who have mentioned linking to dropbox and drive through APIs that it would be redundant. Why use SyncApp if your using another cloud-storage service?
However, it would be really nice to be able to link all of your SyncApp devices to an S3 or similar object bucket. Sync your stuff to S3 and then be able to enable SyncApp to cache only items being used.
S3 and your Desktop become your repository and backup, your mobile devices (laptop,phone,etc..) become your cached devices. This would be a really powerful tool for small businesses as well. You could put SyncApp on all the laptops, use S3 as your "file server" and still move files around the office quickly between anyone who has a cached copy of it.