There is a mention of the A20 series at CES
here
but no mention of regional availability - and as its not on the
USA Sony website yet i have a feeling that yes,we've been left behind here in North America as usual.
Personally if i wanted an A25/A26 I would just order it from
AccessoryJack but as the ugrades from the A10 to the A20 series seem minimal (at least for my needs) I can't see the point especially when they're charging the same price for a 32gb A20 model (the A-26) as they did for the 64gb A10 model (the A-17).
Still, for others I can see how it would make sense (i.e. if you wanted to pair the new LDAC capable headphones with the A20 series Walkman) .how Sony fails time and again to take advantage of a market as massive as North America leaves me baffled. WHY? especially now that Apple have stopped making iPods and are rumored to be removing headphone jacks from their newer phones altogether...
that said I do love my A17 more with each passing day -had it for around 4 months now (maybe longer i have a lousy memory when it comes to those sort of things) and paired with quality cans its performance and sound quality is nothing short of incredible.