Seeing missed calls doesnt matter much because you get the notification anyway...

What i really think is missing is an unread SMS and voicemail symbols from the status bar (like the little letter symbol for unread SMS or tape recorder symbol for voicemail)

Coming from an S40 phone (6500 classic) the N900 it's something i really miss because once you've cleared the initial notification, there's no other reminders you have urnead SMS's until you go into conversations and no reminders at all you have voicemail you have yet to lsiten to.

On vodafone UK i've had to set the voicemail to send an SMS when i have new voicemail as no notification comes through at all like it did on my old S40 phones, very annoying it is.