Eden is down currently because of people chatting. They were being very inappropriate which caused Apple to force Eden to remove sharing worlds until the update. In other words, we may have to wait months (hopefully thats it) before an update. On the good side of things, 2.0 IS truly almost done this time. But, chatters but a burden on 2.0, so now it needs a new flagging feature which will take more time. So, if your a chatter, I hope you learned your lesson and use other apps meant for chatting or sexting next time - not ours.
And, you can still backup and share worlds in a similar way to how Minecraft does it. You can open them up in iExplorer and share the file via dropbox or possibly other sites.