Anytime. :-) I have been using this software off and on, but I am not a photographer, it was more for exploring the program. Then I came across this review and remembered how many of my friends that are making photo's more seriously and even professionally use this kind of software, but pay through their noses for it. And, of course, complain about that. Time and again I offer to install an open source version of whatever they wish, but refusal is the most common reaction to that. Crazy people. :-)

Cool fact about Darktable: it is available for most Linux distributions, but also for Mac (!!), Solaris and FreeBSD.

Not for Windows, unless you're into compiling and not having any dev-group behind that version for problem solving. LOL

Edit: some silly spelling mistakes.