Here's a suggestion for later, after the next bugfix release. :-)
Since you have balloon help implemented in vTcl, could you somehow
make it available to the user to add to their own application?
I know you're adding Tix, and that Tix has ballon help, but this might
be a nice feature for vTcl to provide in stand-alone tcl/tk.
Personally, I have mixed feelings about balloon help. One thing I usually
appreciate is the ability to toggle it off!
Perhaps others on the list can give more feedback on this. I haven't
had the need for it in my apps but I had the idea so I figured I'd send it
on in...
...RickM...