RocketRoute Flight Planning made their Olympic changes on Friday 13th. They have now processed several hundred flight plan messages with ATLAS Control successfully.
Their words
"We operate a telephone support line for members.
We can confirm it is taking up to 2 hours to ACK a flight plan - so make sure you are filing well in advance (especially for commercial operators!).
If you are flying helicopters commercially into the zone during the Olympics or GA pilots flying between the rain clouds - we will keep you flying."
Try
www.rocketroute.com
Free trial for 14 days!
Also there is a handy how to guide available on the blog.
RocketRoute does all the adjustments for your VFR and Y/Z IFR plans that you need to be compliant. Give it a try.