The current incarnation of this tool is very primitive - you have a calculator that you can run/pause and send files to. That's it.
A picture should illustrate what the new one's like and what the old one was missing:
There's a memory viewer, register viewer, and breakpoint window. Breakpoints are caught and highlighted in the breakpoint window.
Currently, there is no editing of the calculator state - PindurTI has yet to support writing back the status (it can only dump it at the moment). All the breakpoint and label information comes from the debug file exported directly by Brass.