I'm eligible for upgrade on AT&T and looking for advice on next phone. I was waiting for the BB 9800 but after reveal yesterday, am disappointed in the screen resolution and lack of HD video recording.

There are a few things I do every day with my phone that I can't give up (at least without a compelling reason to):

1. When creating new meeting requests, being able to look at my coworkers' calendars availability to pick suitable meeting times
2. Running MS Office Communicator as an IM tool as it's required at work, and all other IM clients are firewalled out
3. Two way sync of Outlook "notes" (don't need tasks).

#1 is critical. Is there an Android phone that will allow me to do the above (even if it means going to marketplace)?

iPhone won't let me do the above and more, so it's not an option.

Thanks