I haven't tried Eclipse, but KDevelop 3.2.x includes the following ruby features:
Syntax highlighting (it uses Kate)
Code folding
Class Browser
Shell window with irb
Qt Designer support with ruby code generation
Powerful debugger
Several QtRuby and KDE Korundum project templates
Comparing features with RDT - it doesn't have a unit test front end, or an ri graphic front end yet. Apart from that they are pretty much equivalent as far as I can see.
Slashdot Mirror
I haven't tried Eclipse, but KDevelop 3.2.x includes the following ruby features:
Comparing features with RDT - it doesn't have a unit test front end, or an ri graphic front end yet. Apart from that they are pretty much equivalent as far as I can see.