This from Arriva...
December 2012 - Arriva Netherlands, the Dutch rail operator, is completing a rollout of wireless internet on all its trains through specialist provider Nomad Digital. A pilot of ten trains was first trialed early last year, and, following popular demand from passengers, the project has since been extended to fit Nomad wireless routers on its remaining 51 trains, as well as on an additional 38 new Stadler trains going into service at the end of this year.
By January 2013, its entire fleet of ninety-nine trains will offer free passenger WiFi.
Alas, despite 'popular demand', Arriva Cross Country's class 170 fleet remains resolutely WiFi free.
