I am very disappointed to here this is still happening on the 08 bikes, i would of thought they could sort this out by now, as it seems to affect the whole range of BMW bikes. ( Fuel Pump Controllers seem to be a hit and miss issue as well)
Im not sure how to vote on this, as it has happened to me shortly after buying my 06 1200 Gs. Being new to the BMW brand, and not understanding what EWS meant, i just thought i hadn't switched the ignition on properly and just switched it off, then on again, and carried on driving, ignorant of what had actually happened, until i read around some of the forums.
Reading on, it seems that some owners are now traveling with spare Fuel Pump Controllers, and Ring Antennas, as a get home fix, which is not really what you would expect to be doing with a "Prestige Brand" on a Technologically superior, (as in not Chinese or Korean Built), 2008 vehicle, (Not 1988).
(No pun intended to any Chinese or other Asian persons/ Makers)
Surely by now the technology exists to repair or override some of these electronic failures by means of "Chip and Pin Technology", by putting the Vehicle into a basic, or low power mode, with warning light, to get to a Dealer or home.
Im planing to change my 06 next year and would really love to buy another GS, i still love the design, and the overall driving experience, best Bike ive had after 23 years of Jap Bikes.

( Traded A 00 HAYABUSA for my 06 GS )
Sorry for my rant, feel better now, Gary