After checking out ktoon 0.8.1, i was less than impressed. The interface seemed to arbitrary and looked like it had been constructed by someone with a lot of screen real estate (on account of everything looked big and clumped together).
Editing was pretty clunky, not to mention buggy (e.g. i was trying to move around points on a polyline and the points moved, whilst their associated markers didn’t).
In the end i just gave up and decided not to use it.

I also tried synfig a while back, but for some reason it didn’t really want to work properly. Coupled by the fact that i couldn’t find any useful documentation on how to actually use it, and i was left with an equally dissapointing impression of it. I hope the latest version fares better.

I think open source Adobe Flash ‘IDE’ killers in general still have a long way to go before they beat the relative simplicity and power of the Flash ‘IDE’.

Regards

James