Just to report on work in progress: I am currently working in my spare time on making sure that Closer to MOP works (again) with ABCL and ECL. ABCL is in relatively good shape, but still needs a couple of bugs fixed here and there. Rudi Schlatte is doing a fantastic job at responding to bug reports. I'm pretty sure the next release will have excellent Closer to MOP support. ECL's recent version came with several changes in its CLOS MOP implementation which broke a lot of things in Closer to MOP, so the current version of Closer to MOP doesn't work with ECL. I'm doing what I can to make sure Closer to MOP is back to speed again with ECL. However, I can only do this in my spare time, and will be busy moving in the next couple of weeks, so some delays are to be expected...