Here is Matt going 'round the bend' again!... if Vern were still around I know he would pick-up on this! I just saw Character Box from Japanese company PSOFT.... for modo.
It is sort of a cage based rig- where you size the cages to envelope the various parts of your model. This is how ikinema works too. This approach gives very smooth deformations no matter how dense the underlying mesh is. I always thought we have what it takes to do this in A:M, in conjunction with an existing rig setup (which you still need for all your FK/IK and constraints) So- instead of endlessly dinking with weighting or cogs or smartskins you would have a 'set-it-and-forget-it' solution... which would allow you to continue modelling after you rig and not have to worry about what bone(s) this new geometry needs to weight to...
The one thing I remember as I crudely attempted such a setup- that we DO NOT HAVE that would/could make it possible... is the ability to assign the control-points of our deformation boxes to a bone, like weighting on a point-by-point basis.
The Yen to dollar price comes to around $575... yikes! I remember paying $300 for TSM1 back in the day!