Andriod Calendar add Public folder

Have you looked into something like this?

http://www.codetwo.com/exchange-folder-sync/?sts=1366

Or you could try this method I just found:

I've now succeeded in syncing my public calendar to my moto milestone using android 2.1 update 1.

Here's how I did it:
- Right click on the calendar inside of it's public folder in outlook and publish the calendar to office online. There are 2 ways to do it, publicly (calendar is viewable to anybody who knows its there and wants to look), privately (only viewable by invitation). You'll need a windows live account to associate the published calendar to. I personally haven't tried syncing with a privately published calendar yet. I'd be interested in any success stories, I don't have time to mess with it further currently. Once the calendar is published you'll be provided with a webcals url.

- Log into your gmail account on google, navigate to the calendars section, and add a calendar by url. Paste the webcals url you got. If the url says 'webcals' at the begining you may have to take off the S making it 'webcal'. I had to do this, though I only knew because I added the calendar on my live account calendar and it told me to take out the S.
- Now sync your google calendar on your droid to that gmail account. My calendar showed on my device right away but didn't update until I turned the calendar sync for that account on.

So far I've kept my shared calendar showing in my google calendar only, and my milestone corporate calendar shows my personal exchange calendar. Was working on merging that one into the google calendar too since I'm using it anyway, but not in a hurry now that I can see the shared calendar.

Hope this helps somebody!

Source: http://androidforums.com/hero-support-troubleshooting/11641-sync-all-exchange-calendars.html

You can use the following software that'll help you sync PF to Droids.

add2exchange link
DidItBetter link

AND

CodeTwo: link - same as pointed in earlier post.

Regards,
Exchange_Geek

I was looking for a way to do this without third party software? I have one user that I was able to add a public exchange calendar to his favorites list and it showed up in his calendar list on his phone. I have not been able to do this again and have not found any differences in his account.

Is my second comment not feasible for you? It doesn't require any third party apps, rather the built in sync functionality of your pre-existing google account.

Being corporate phones most of them don't have gmail accounts, only an exchange account. I know it's possible because i have one user it works for. I just don't know why one would work and others wouldn't. Thanks