Here's what I did, I already have a silicone case for my 1G Touch. I took two pieces of cloth and I stuffed it inside my case, I inserted my touch in and it leaves a bulge at the back, similar to what the 2G has, I find the egg-shaped back better because it contours to your palm when you hold it. So now, I have a 1G touch with an egg-shaped back, it looks EXACTLY like the back found in the 2G(except my unit is thicker, of course). I found two pieces of cloth to be sufficient, it will depend on how thick your cloth is. The only way one can tell whether it's a 1G or 2G or not is by looking at the volume buttons, because the back is replicated perfectly. If you prefer the egg-shaped backing of the iPhone 3G and iPod Touch 2G, try this!