I can't confirm what the system works like since I haven't received mine yet but according to the press release it should be a one shot system. Is yours the 2010?
Nuance`s One-Shot Destination Entry featured as part of the new Professional BMW
navigation system enables drivers to simply speak an entire address in one,
simple command versus a series of multi-step dialogs and response commands for
city, street and street number. Drivers can now simply say "1 Wayside Road,
Burlington, Massachusetts," and the route will be calculated automatically.
With Nuance`s next-generation Music Search capabilities for automotive, BMW
drivers can quickly and easily access their favorite, stored songs from behind
the wheel by selecting the audio source, genre, artist, album or song with a
simple, spoken command. Nuance Music Search also recognizes several languages in
parallel. So a French-speaking driver can look for a German song title or
English album, and vice versa.