Closest chip I could come up with that serves such a function is this....
MCP1754
I'm hoping that the module is self contained in a ring that's somewhere in between the stealth connector ring and the top tube, but with a nice lcd screen (not one like on the provari or typical box mods, but something truly fluid and classy). One can only dream I suppose...
The other route I can imagine is something that replaces the bottom cap or at least the battery spring post, which is the more likely option, and would also explain Imeo's hesitation to introduce the fuse upgrade as a standard feature. *hint* *hint*
Whatever you come up with Imeo, I'm sure it'll be great! Maybe u can give us a small hint and tell us if uou decided whether it's going to be VV or VW? And whether it's going to be a GGTS exclusive, fit in all mods, or be a totally new device itself (Proteus?)??