Can Zulu Do This?

I may well be confused about what's the right mix of products for this situation. I have a client who wants a set of Filemaker date entries (each record is one date from one user's schedule of appointments) to be available to multiple users on their iPhones. The owner wants to see ALL user's appts. but each of the other users should only see his/her own appts.
As of two months ago, it looked like I needed to setup several products to do this, but now it seems Zulu would do it all. Just want to confirm this.
Originally, I setup BusySync on the key iMac (the one that would enter all dates for all the users schedules) to push the iCal dates out to a Google calendar. That calendar would be jointly accessed by all users via their iPhones. Who could see what was to have been handled by subscriber privileges in Google calendar account.
On the Filemaker side in the original setup, I configured Productive Computing's iCal Manipulator plugin to push the FM date entries out to iCal. Once in iCal they would be pushed out to the Google calendar via BusySync.
So the BIG question is, can Zulu do what needs to be done WITHOUT BusySync and/or iCal Manipulator? My understanding is that Google calendar allows shared calendars via iPhones and/or web whereas iCal (even iCal Server) does not.
Any suggestions or guidance on the proper deployment configuration would be appreciated. I got the demo of Zulu going to test a simpler solution for yet another client and it is WAY COOL. Hopefully, I can use it for this more complex challenge as well.
As of two months ago, it looked like I needed to setup several products to do this, but now it seems Zulu would do it all. Just want to confirm this.
Originally, I setup BusySync on the key iMac (the one that would enter all dates for all the users schedules) to push the iCal dates out to a Google calendar. That calendar would be jointly accessed by all users via their iPhones. Who could see what was to have been handled by subscriber privileges in Google calendar account.
On the Filemaker side in the original setup, I configured Productive Computing's iCal Manipulator plugin to push the FM date entries out to iCal. Once in iCal they would be pushed out to the Google calendar via BusySync.
So the BIG question is, can Zulu do what needs to be done WITHOUT BusySync and/or iCal Manipulator? My understanding is that Google calendar allows shared calendars via iPhones and/or web whereas iCal (even iCal Server) does not.
Any suggestions or guidance on the proper deployment configuration would be appreciated. I got the demo of Zulu going to test a simpler solution for yet another client and it is WAY COOL. Hopefully, I can use it for this more complex challenge as well.
