Would this be somthing for a BOB?
Cabela's Hunter Bivouac

Not bad at all, especially for the price! I'd be a little worried in high winds though, it doesn't look very sturdy.

If you'd like something different than a cammo pattern, you could look into very lightweight backpacking tents such as the Seedhouse SL2 by Big Agnes. I own one and absolutely love it. The tent and fly are dark green It would appear more suitable for general use/car camping as well... unless you really wish to park your purchase in a BOB waiting for an emergency.

Good find!

Nice, but this is what I am going with, Same idea but smaller and lighter package.
http://www.fieldandstream.com/fieldstream/columnists/article/0,13199,475886,00.html#

I have a Hennessy Hammock in my BOB but...

Lean-tos are nice if you can have a fire for it to reflect heat from but that is about their only advantage. If you are in an area where fire is not allowed or not practical, a lean-to loses that advantage.

Small enclosed tents or hammocks are much better protection from weather and insects and can be just as light and compact. Slightly larger tents give you room to move around a bit or work on equipment while protected from the elements. Most packable tents have a detachable rain fly that can be rigged as a lean-to, although a bit small for that purpose. You could always make an over-sized rain-fly for a tent to increase your shelter's capabilities and versatility.

Note to self: Get over-sized rain-fly for hammock.

Altho much more expensive, if I wanted a lightweight tent with an open side, I would look at a Stephensons Warmlite ...

I've got that bivy. My wife got it for me as an birthday gift before a hunting trip last year. It's not bad. Setting up is easy, putting it away isn't quite as easy, just a lot of stuff to make fit in that little bag. I haven't been in any really bad storms in it, but did have a light rain one night. It held up fine. Inside space is about what you'd expect, enough room for a 6'2" husky guy and packand little else.
For a night or three hunting, it's great. Any more and I'd rather take a larger tent. For what it's worth, it does spend it's free time in my truck bag.
If you have any more questions, I'll try to answer them for you.