I've really been enjoying the Motobecane Fantom Cross Uno singlespeed cyclocross bike, but was not happy with the bottle cage placement. I have a Backcountry Research Mutherload strap to hold a tube, mini tool, and patch kit, but had to mount it under the down tube near the bottom bracket. Sure, I could have put it higher on the seat tube, but I was going for a lower center of gravity. After scouring the interwebs, I came upon Mount Skidmore in Australia and their bottle cage adapter.
This is a really well made handy product that is well worth the price. Also, shipping to California from Australia was pretty speedy. I hope they come up with other nifty products.