For the algorithmic/graph-theoretic problem with this abbreviation, see Traveling Salesman Problem.
My name is Santeri Piippo, I'm a 15-year-old Tcler from Finland who has been around Tcl for 3/4 years by now. I've been doing different kinds of apps with Tcl, but none of them got far enough that I could release them. :)
Some of you might have seen me around in the Tcler's chat room as "aleksanteri", but I wanted to be within the group here so I fiddled a bit with my name and ended up with TSP.
Currently I'm working on a Tcl/Tk -based IRC client, T2I.