OK, Just passing on the email - so don't be hatin' to much. OZB So full of Hate sometimes.
Anyway 5gb free, same as pretty much everyone's deal - Seems to be for Logmein users and anyone else who signs up, so consider this just me bringing to your attention rather than advocating or advising on how good their service is, I personally plan on just using it as another place to backup critical things in case of global/sudden meltdown of dropbox, skydrive, google drive and box.
Looks like the advantage is (and I haven't used an affiliate link or similar to my knowledge) you can invite people and get 1gb per successful signup up to 25gb. So PM me if you want to be generous and I will spam your inbox.
More Info.
https://www.cubby.com/pricing?p=1
copy.com?