Make it light weight. We don't need plastic covers and metal containers and holsters for it. Just the tools and a piece of aluminum to hold them together.
It would be nice to have a variety of bits which could be removed or added as needed. For example, some bikes need Torx while others do not - add a Torx T25 if needed and remove it from the tool if not needed.
Maybe the tool could be configured to order with just the bits required.