Finally the realisation of well implemented Search! Basically what the Shell has been leading up to since conception.
I don't think it's a full search though unfortunately, although I would love to be corrected on this, which means there's a trade-off between this and something like Spotlight (one of the advantages though I guess is that it means Documents files in the cloud for example can be a part of the search). It's probably the right direction to take considering the emphasis on applications like Documents, Music, Contacts etc. in GNOME though.