users, how reliable is the iPhone? in terms of syncing to Yahoo e-mail, Yahoo calendar, and POP e-mail? My BlackBerry is usually reliable but (1) the latest version of Yahoo Sync will not allow for wireless syncing (the older version did) and (2) I am having issues with wired sync right now and I run my own business and just cannot afford to spend all of this stupid energy trying to fix IT issues. I will lose hundreds of dollars by cancelling my Verizon plan but if iPhone syncs wirelessly and is reliable I will switch.

TY