I think you answer your own question: there are some good musicians around! Not that I'm all that well acquainted with the swiss jazz scene of today, but I hear interesting things here and there pretty often.
By the way, Pearson is an englishman who lives in switzerland (Zurich, I think, but I'm not sure) for pretty long, now.
There are other imports, as Nils Wogram, or Billy Cobham (if you're into GOOD classic piano trio playing standards, check his "Art of the Three" with Kenny Barron and Ron Carter, one of the most surprising albums of recent years, in my (and Sngry's - see his thread in the recommendations section) opinion)
ubu