> Would you like to try that?  :-)

I've found this one [1] through this thread [2].

It looks like hula hooping (no offence).  So it's not appropriate.

> Right, but how to do it in Inkscape?

Select an object, then 'Path' -> 'Object to Path'.

> Looks nice, but I find too close to that of Nix (and it loses some of
> its original meaning [0]), and plain lower-case lambdas are too common,
> I think.

It's important to get the meaning very quickly.  That's why lower-case
lambdas are so common.

> Hmmm, this needs more thought, suggestions welcome!

I like this idea:

"It's important that this process has a deadline (perhaps the end of
the year?), so that we can make progress, we can hopefully quickly
adopt the new logo.

If you'd prefer we adopt the logo now, then this is also fine with me
as long as we can agree that incremental improvements of the logo are
still possible and even desired." [3]

Nikita

[1] http://www.haskell.org/wikiupload/c/c5/HsLogosMB.png
[2] http://article.gmane.org/gmane.linux.distributions.nixos/2951
[3] http://article.gmane.org/gmane.linux.distributions.nixos/3046