I've downloaded Safari 6 for Lion as well (on a 10.7 computer that isn't eligible for 10.8). Am I correct in assuming that iCloud tab syncing won't be enabled for me on Safari on my Mac? The iCloud tabs button isn't showing up.
And NO backspace to move back pages, NO activity monitor, NO visual indication of tabs loading and NO empty cache command under the Safari menu.
Safari 6 is HARDLY an upgrade to 5.1.7, in my view...and it's NOT a ML feature, it can also be downloaded for Lion (I did and then rolled back to 5.1.7 for the reasons above).