I have an E90. Phenomenal device, but you'll get a hernia carrying it around. And you'll spend easily $800 on it. Maybe more. I think the best calendar of the bunch you mentioned is the Blackberry in Agenda View. The Nokia calendar is basically the WM calendar, and they both suck. With the Nokia, however, you can get some pretty good aftermarket calendars like Papyrus. There's probably a bunch of replacement calendar apps for Windows Mobile as well. If you ask me, the Blackberry is tops. Big surprise, huh?