I don't think the delayed version of the facebook app will include any sort of chat, but I feel that it would be easy enough for one in the future since the chat API is easy enough to integrate into other apps.
Out of curiosity, have you tried the Storm beta on your Bold? I don't know if Storm apps are backward-compatible or not, (like how we can run older apps in compatibility mode) but it might be worth a shot. FB works great on the Storm beta.