Roxon Flex Companion: customizable swiss army knife
Roxon Flex Companion: customizable swiss army knife

Flex Companion – Modular SAK for Ultimate Versatility

I've wanted to make something like this for a while, so I'm glad it's on the market. However, you're limited to just 5 tools plus a bit driver. Lots of interesting tools to choose from though. If the tool count rivaled a medium sized Victorinox with the same form factor, I'd consider it.
I'm glad to see a company doing this. I plan to pick up the Flex Modular (with the pliers) this fall.
The other cool thing about this system is that you can, in theory, build a small multi-tool that is TSA friendly. YMMV of course based on how the TSA agents feel that day.