Turns out the beta date is unofficial (though it came from the official Ghost Recon UK Facebook). I'm still leaving it up, though, as it sounds accurate enough.
Yeah, the cloaking is not really problematic from what I've seen. In Campaign, it's not a free pass to go wherever you want. Enemies can see you when you're within 10-15 feet, if you're not careful. I think it's more of a graceful stealth indicator than Splinter Cell: Conviction, in that, you can't hide in a dark corner, 3 feet in front of an enemy, without getting seen.
In Multiplayer, it's more to help snipers get around than anything. There are a lot of counters to it, as well, for the attentive player. Drones and sensor grenades at least, but maybe more gadgets. From what I've seen, you definitely want to keep your head down in areas with long lines of sight, though.