I like the "Mail" change.....lots of control..... but the "People" part still sucks. Categories, categories, categories....don't they read feedback? There needs to be a list option (columns) and you should be able to sort by company name. I don't particularly like having to look at everyone's avatar. There should be an option to turn that off.
I'm curious to see what changes they make to the calendar......if they don't have categories like the real outlook, they're wasting their time. That would be the BIG WIN over Google. I hate multiple calendars vs. categories.