Eze has no train station, only a small, metro like thing we saw in the Electrical Storm video. And that runs straight to Monaco. So I don't think that's why he was there.
http://farm6.staticflickr.com/5321/7397940106_24b7ed0ec3_z.jpg
This is EZE Station
The picture caption says it was Menton station, not Eze. But I'm pretty sure he went to Monaco from there, since he and his family are staying in the Hotel de France right now.
I cant see the casino pic...
That's an old photo circa 2008
Are you sure?! Coz I've been looking at my pics of Bono from 2008, around the time there were many sightings of the band at HQ and also from July 2008 from Eze, and can't find any where Bono's hair looks long on top and short at the sides, as in this pic and as we've seen it in other recent photos of Bono. The redness of the hair, which is Bono's natural hair colour, could just be due to direct sunlight or the settings of the camera used.
Okay I just got confirmation from the actual girl who's in the pic with Bono, this is from 2008!