I haven't had any trouble with OTR, and this is the first I've heard of interoperability problems (but I haven't gone looking for information on them before). I

I haven't had any trouble with OTR, and this is the first I've heard of interoperability problems (but I haven't gone looking for information on them before). I wonder if it's due to a lack of client diversity among my contacts. Most of us use either Adium (which has OTR built in) or Pidgin with the OTR plugin, and they seem to interoperate ok.