Hi
I have been Platinum with KLM - Air France for a few years.
As I have started to get fed up with them (almost never ever upgrades, ...... planes, not always good service), I've decided to go on with Star Alliance.
I called Lufthanse and asked if they'd match status but they weren't interested.
However Continental said I needed to send (email) my OnePass card number and a copy of my current frequent flyer card (and name/address details).
One day later I already received Gold Status - so even though I am Platinum sky team, I can live with Gold Star Alliance and am very thankful to Continental! I can't wait to fly only Star Alliance - Great planes, good service, great lounges, etc. etc.