I'm not into silicone gels and plastic wrap and stuff like that. But, I wanted something to slip the iPad in for travel. Well, I was at my favorite store in the world (no I don't work for them), REI, and found a computer case that seemed to be custom made for the iPad, even though is wasn't.
It's called the Tech Wrap Computer Sleeve. I absolutely love the case. Here's a link. There's even a video review by a purchaser right there in customer reviews.
REI Tech Wrap Laptop Sleeve - X Small at REI.com
There are several sizes. It's the X-Small size that fits the iPad.
It might not be right for everyone (it doesn't have a built in way to stand the iPad at an angle, for example), but if you just need something to protect and transport, I believe it's nearly perfect!