XFA and XFB have had wifi for a while (since the last C/D check). The FA's told me it was rarely switched on as it 'does not reach the back of economy properly so we don't turn it on or advertise it as people down there get upset'.
I can report that it was in fact working and quite well for me last Wednesday (on XFB). I was seated in 8A. Didn't notice if anyone else was using it.
I have not yet encountered it being used on an Embraer yet which is quite annoying especially as I take an E190 from WA to the East Coast quite often - VA1851 on a Friday
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