The new MyComponent really has only one config file that you have to edit for each project (and one line in another file that specifies which project you are working on). Including the file returns a PHP array with all the settings, but it's premature to be building a GUI for it now, because there are a number of changes yet to come.
If you have all the code written for an extra, I think you could easily create a transport file for it in less than an hour and update it in about 5 minutes. That said, I have yet to test it on a real project (though it's passing all the unit tests at present).
@fuzzicallogic: I would hate to have us both end up with competing extras that do the same thing, especially since I've already spent several hundred hours on MyComponent. I love it when people contribute to my extras by sending me bug reports or fixes and new features to integrate, but I'm not crazy about them doing major refactoring.

I don't have the spare time to evaluate their work.
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PLEASE, PLEASE specify the version of MODX you are using.
MODX info for everyone:
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PLEASE, PLEASE specify the version of MODX you are using.
MODX info for everyone:
http://bobsguides.com/modx.html