I know this is of niche interest, but the Remember the Milk provider does actually work with version 3.0.3 of Thunderbird. All you do is change the version as described here (the rest of the hack isn’t needed with the latest version of the RTM app). Unless you actually use both apps regularly, you can’t imagine what joy it was to make this discovery this morning.
This probably isn't as exciting for you as it is for me. Also, time to change my desktop background.
