I work from my home office on my Mac and have Parallels installed so that I can VPN into the office network and if necessary fire up Outlook. For the most part I don't bother with Parallels as I'd rather keep the free memory available and Firefox does most things with OWA light. The one thing that doesn't work well is the appointment management. I receive invites all over the place but have to manually enter them into iCal and setup reminders to make them show up on my iPhone. I really don't want to integrate all of my personal calendars into Exchange as I have them set up the way I want them and like them as they are so enabling the Exchange calendars on my iPhone isn't an option. I'm sure I can't be the only one that has this type of setup and I see lots of laments on the intraweb about iPhones not being able to open ics files. However, I see very few resolutions to this. What are you guys that have a mixed environment like this doing to alleviate the problem?