My 07 GSA has been doing this since I got it new. Now 23k miles and several services (and a recall!) later it's still happening.
The Battersea people have replaced the ignition coils for me (made no difference) and made rather supercilious comments along the lines of "oh of course I know exactly what that is sir just leave it with us blah blah" all to no avail. Not once has anyone expressed concern or asked a single question about how/when it happens.
In truth it's not the bike I have a problem with - it's the people at Battersea with their smugness and refusal to take a problem seriously. I think they sit there repeating to themselves "BMW bikes don't go wrong".
Anyway it was my first BMW bike and I feel let down. I've decided to hand it back to them in November - thank goodness I went for the select option and didn't buy it - and will go back to my 2004 FJR which has been waiting patiently in the garage. Now THERE'S a great bike!!!