Thank you very much for the replies. I completely understand now about the state of the debugger, and I'm interested in alpha testing whatever debugger is available. I'm not afraid of experimental, bleeding-edge code and tweaking things out. Clicking on lines in XCode to set breakpoints like a VB coder is NOT what I was imagining at all. I use Ruby a lot, and one of the things that I love the most about dynamic runtime environments is the ability to stop code while it's executing, and then interact with objects using the same language that I use in the code files. The simple ability to insert a "debugger" statement to trigger ruby-debug to stop and give me a prompt where I can type "User.last.inspect" is a very powerful thing. Far more powerful than GDB could ever hope to be. I understand that there won't be integration with XCode for a long time, and that if/when there is XCode debugger integration that it won't necessarily look or feel like using GDB in XCode. Given my hopes/expectations, is there any way to set up a Cocoa app so that it runs code in macrubyd intead of macruby? So that I can set a breakpoint to stop it and look around? I definitely don't care whether I have to set the breakpoint from the command line or even from hard-coding the breakpoint in my Cocoa app's main.m main() function or whatever. If anybody could provide any pointers on any way to use macrubyd to debug a Cocoa app then I would really appreciate the guidance. Thank you again for MacRuby! It's an incredibly elegant and beautiful thing, and I think that in the near future it's going to be very important to a lot of people. -- Ryan