Not sure what's going on with the 808 cartos, but frankly its not a huge deal any way you look at it. Grab an adapter and use any other cartomizer, or go buy a different company's 808 cartomizer. He's not the government falling late on a social security check. If he could have his site up and running flawlessly right now with every product available I'm sure he'd click the Staple's "easy button" in a heart beat. Isaac has said he is having server issues and is moving to a new server, awesome. I know I wouldn't want to be dealing with that right now, as well as not making money by not being able to sell products. Who's really losing out right now? This is the guys business and financial situation we're talking about compared to your desire for a product, no offense.
Think of it this way, he's spending money and time right now to create a safer and better way for us to get our products. He doesn't owe us anything, every product that he takes and reinvents and then masters to perfection is a gift to the vaping community.
So yes, IKV is still viable until Isaac says it isn't... and has recently released one of the most praised atomizers on the market, as well as their own improved take on a lot of other types of atomizers and cartomizers, always staying low priced with bulk discounts and coupon codes etc. Problems happen, its the way of life. It's your personal obligation to solve the problem in the multitude of other ways, not take it out on the vendor.
If you want an 808 cartomizer, and you really like IKV's and are unwilling to buy another company's then what does that show? The fact that its out of stock is irreverent and I can only suggest buying one of his other great cartomizers when the issue is resolved, or as has been suggested the 510 mega which is exactly same, minus an adapter. And don't worry, if don't want to use an adapter and are forced to buy from another company, Isaac won't be mad at you for choosing to continue vaping through other means.
Sorry if that was a bit harsh, but seriously give the guy a break, is all I'm really saying. Site will be up when its up, cartos will be in when they're in. No sense brooding over it.