Johnnyc...No. There has been a change in permission over which ATC functions which may be combined. You may hear a tower and approach radar controller being the "same" person. However there are very strict rules in force as to when and how this may be utilised.
Think it is only in trial mode at the moment, although thats probably just a formality. Reduces the number of ATCOs overnight I imagine, saving a few beans for the airport and NATS. Agree with Eastern though, Seems to be very strict rules as to how it is implemented/operated.