As well as the usual problem where some SMS/Chat messages still come in and are assigned random details of contacts in my phone book (leading to an argument with my wife as i was replying to her about something I thought was from somebody else)..... there is my most 'Favourite' of favourite contacts that cannot hold onto it's favourite tag.

Again, I think my phone doesn't like my wife

A few improvements with PR1.2 but also not perfect and more to do so i hope Nokia honour their initial claim to keep supporting the OS.