- VecTcl numerical package at http://auriocus.github.io/VecTcl/vectclab.html
- Tcl on Android at http://www.androwish.org/index.html/home
- Test automation at http://caiusproject.com/
And most interesting to me, naturally, as the author :-) http://wits.magicsplat.com/screenshot.html
Check out `http://wiki.tcl.tk/' (which has lot's of good information).
Also learn some Tcl by reading the redis test suite here,
I've also written an Awk-like tool in Tcl that speaks SQL and has table joins - https://github.com/dbohdan/sqawk.
Edit: Also http://caiusproject.com/ looks very interesting.
The only strong players that I recognise in this market are Coffeescript, Typescript and Clojurescript. Probably there would be a market for "TCLscript" also.
We'd love to hear from you if you're interested in coding for Naviserver and have HTML/CSS/JS skills. We're working to launch www.rubylux.com now.