The team at Belgian-based train service Thalys have been heavily promoting their thalys.mobi site with some very nice poster advertising in train stations around Europe. This is a shot from the very busy Gare du Nord in Paris. The text says, "All of Thalys on your mobile."
I've also been seeing some cool sites like
Paramount.mobi (the movie studio), time.mobi (as in Time magazine), wnba.mobi (basketball),
thesun.mobi (the