It would be useful if in the next version of Scratch you were to add a debugger, like the functions in the various versions of C++, where if something breaks it doesn't fix it but it takes you to the line of the break. It is immensely frustrating to have to sort through hundreds of code blocks just to find where you coded the thing that went wrong. One other suggestion--there are several sound files that Scratch is unable to read, such as those originating from a Quicktime file.
Anyway, these are just minor things, but I think they would help to make the Scratch language even more polished and versatile!
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I agree. The Single-Stepping feature is helpful, but a mechanism for "breakpoints" would be useful not only for debugging, but for teaching as well. When presenting an advanced concept, being able to stop the running script, pressing a key (Space, or something), and watching the code happen could help to reinforce ideas.
Especially if things are being done with a lot of messages being broadcast. You would be able to find anyone who is listening, which is not always easy...
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