The new update with a fix to the data loss bug and inability to save has begun its journey. Let us hope for a swift passage.
This is how we will thank you for your patience:
1. Anyone who suffered from data loss will be granted 100 000 free kills.
2. If you used OpenFeint, the next time you log on all the characters for which you had an achievement will be unlocked, as well as the next most expensive character you didn't yet have an achievement for (if any). For instance, if you have achievements for Jerry Gore and Zombieville Guy, you will get access to those two characters + the next character, Hook Champ, regardless of whether you had them unlocked previously or not.
We recognize this will not make it up for everyone (particularly those of you who don't go online), but hopefully it helps alleviate things at the very least. The bottom line is the update is on the way, so bare with us a little while longer!