The tools we have are quite simple, like running a set of automated tests on a Tegra device and then upload results (pass/fail, code coverage, memory leak stats, etc) to a web interface.
We've had a few Haskell coding nights where I and my boss have been teaching our teammates some Haskell skills. We have about half a dozen coders (out of ~50 at our office) who can do enough Haskell to get shit done.
We use Python for small tasks quite a lot too. Python's batteries included approach works pretty well for simple tasks.
Plus I guess some people just prefer functional programming when they can and Haskell offers that in abundance. I guess the downside is the less portable nature of the code (this is where Clojure et al. would probably win...although writing command line tools and scripts in a JVM language still has a long way to go IMO)