I got tired of waiting, and combined Pidgin 2.2.1 with the current version of PidginPortable to make my own PidginPortable 2.2.1. Here is a link to my blog post about it.
Please let me know if you have any problems using it. Hopefully this will work for people until John has enough time to put together an official release.
Author's bump comment removed by moderator JTH. No bumping.