Well, obviously it sucks that it took so long, and so much damage has been done, but nonetheless... this is great news, if true. Let's just hope that this new cap holds up until the relief wells are finished and things are truly under control. Wonder how long the cleanup process will take? Can something of this magnitude even ever be completely cleaned up?
"Can something of this magnitude even ever be completely cleaned up?" Likely no. Certainly improvements can and will be made, but there will be irreversible damage, at least on a human timescale.
This is not the first time oil has leaked. It's biodegradable, the damage is totally reversible. Just look at the history from the ixtoc oil leak (about the same size as this one). There was pretty much no long term damage at all.
At the bottom of the sea the oil will probably last for a while, but it'll be buried very soon. Everywhere else it'll be gone quickly.
Read this if you don't believe me: http://www.nola.com/news/gulf-oil-spill/index.ssf/2010/07/19...