Could you add some information to the README that documents:

• the availability of the ~/.titlecase.txt feature
• the expected format of the file
• an example invocation

I think it would also be nice to expose an option to set a custom wordlist (i.e. titlecase --wordlist {path}), that would let folks have multiple lists depending on context, but more importantly, it's also a path to enabling the test suite to ship an example custom wordlist and run tests over that wordlist as well.

Re Py2k: No love here for Python2. I think what I'll probably do is try to shore up everything outstanding, make one last release that includes 2k, and then drop 2k with a new release -- probably actually make that a 1.0 release, which is way way past due given the use this sees.