I can't talk to the Euro/US thing, but I use an iGolf GPS unit in conjunction with a Bushnell Pinseeker 1500 TE.

The main difference between the GPS and the laser is that the GPS can give you accurate carry distances over hazards and distances to elevated greens, blind shots, etc. I particularily like that I can know how much fairway I have on a dogleg before it runs out with the GPS (as the laser can't pickup the first cut). However, the laser is best when it comes to distances to the PIN, as GPS only gives front/middle/back. I chose the iGolf over Skycaddie for two reasons: 1) No annual membership fee and 2) 11 custom mappable points.

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True Length Technology Fitter - www.truelengthtechnology.com
It's live! - www.ShipShapeClubs.com
PCS Class 'A' Clubfitter

A new highlight: Golfing the home course on Christmas Day.

I say it too often: If it's golf club shaped, you can play with it.

For the record, I'm a club doctor, not a swing doctor.