If you don't to tricks and tips then it's surprising when you chat to your users what they haven't found for themself.
- erm like you can lookup and email address or a staff members phone number - wow!
- I can browse the web via my bb?
- Ah so there's an option to customise that profile (not having found the scrolling down on 88/83xx series)
Definitely a good idea, but as Jadey says getting harder to do now the devices / versions are getting a bit more wide-spread. Undoubtedly companies will have mixtures of 4.6 devices and pre-v4.6 devices which makes screenshots or similar more complicated.