Would it be possible for TextSecure and ChatSecure to interoperate (at least with chats)? Or would that create too much pain for both groups to support each other as they (possibly) diverge in features?
I'd love to make this happen, but it won't be possible unless they support open federation, which is currently impossible when using your phone number as the identifier. I do plan to support Axolotl in conjunction with our provider-agnostic push solution, which could potentially provide a bridge between the two platforms.