South 0.6.1 is now available for public consumption; it fixes quite a few bugs.
If you want to see what's been fixed, have a gander at the Release Notes - there's a few significant bugs that have been fixed, including problems with SQLite, GeoDjango, and M2M fields.
Sorry for the short but sweet post - I'm in the process of writing my talk for DjangoCon! I'm giving a talk about South, with both a good grounding for those who haven't grokked migrations yet, as well as some tips on more advanced usage. Come watch it on Tuesday morning!