I want a Tour form factor with a high-res AMOLED touch screen (same 480x320 is fine by me).
16GB internal memory, so I can leave my iPod at home more often.
A Windows Mobile like today theme with proper listing of upcoming appointments, tasks, and emails with from and subject.
Better Outlook sync/integration. Something like activesync; a streamlined sync tool. Not a bloated multifunction desktop manager. Let them be separate.
Allow the use of custom categories for all PIM applications (contacts, calendar, tasks).
Better battery life.
Oh, and replace the stupid $ key with a . key. Yeah, I know you can double tap the space bar, but I think the $ is a clear indicator that RIM is more worried about $ than . :)