I'm sure many of you, like me, don't have room for a design wall. My sewing room doubles as our guest room so I can't see making a design wall a permanent feature. Instead, I have a large piece of flannel that I put on my bed. I can lay the blocks on the flannel, where they "stick' so I can even fold it up when with the blocks in place if necessary.
But the latest issue of American Patchwork & Quilting has a photo (page 12) of a new tool for quilters called The Vanishing Design Wall. I think it could be a good alternative to the design bed. It works similar to a movie screen. Here is a short video demo.
This might be going on my Christmas list! But I still have to figure out where to put it.