I'm not sure I understand your question. Why wait for Indigo Touch 2 to organize your devices into rooms (presuming that is how you want them organized)?
It will not be possible to expose Indigo devices as HomeKit devices. That is, the HomeKit bridge functionality is not something we (or any other software platform) can use at this point. Unfortunately, that decision/limitation is totally out of our control.
Not sure what one (a hardware bridge with XBee radio) has to do with the other (software bridges).
Apple generally responds much like we do - they watch for patterns in demand. The more people that request a feature the higher up on the list the feature gets and the more discussion the responsible product managers have about the feature. Thus, more requests to allow HomeKit software bridges equals higher chance of notice by the PMs.