It's good to see so many of my fellow, heavy Evernote users weigh in on this point... I'm using the current version... lots I like; somethings I don't like (e.g. the slow processing when batch tagging, inability to sort by NOTEBOOK when I'm organizing my notes, having to re-learn my shortcuts, etc.,)... but the absence of TABS is really big... we all want it - and every time I get an update, I think... sweet! Maybe this is our time! But no. Nothing. Nada. Not a peep from anyone. What's up with that??
PS - I've been relying on EN to manage my life for years... I've got some 30,000 notes to manage.