Some days ago they started to show the first season of BBC's sherlock on a germany tv sender. I needed to look twice but...

... do you know what phone Dr. Watson is using (the one he got from his brother who does not need it because of his crashing relation)?

It is the good old N900. There are only details shown: Nokia sign is landscape, not portrait, camera slider, one time the keyboard is slided out, they scratched the usb slot because Watson drinks too much and has problems in plugging in the cable (question why don't they show a broken usb slot??)