There's been an interesting program for creating 2D animations under development for quite a while. It's Kickstarter page went alive 2 days ago. ENG link
CZ český překlad
Take some time to read it through, it has some nice features, or try the beta version. You could support the developers by donating on the Kickstarter (for 25$ you'll get the full program) or by linking the article to friends/other developers etc.
I'm not participating in Spriter development, just trying to help the authors spread the word.