Hello, first of all, thanks for your work and efforts on apn_on_rails. It's a great tool!
I've found your readme a bit confusing about last_registered_at field, that I suppose is really important.
Every time my app start I do something like:
Device.create(:token => '5gxadhy6 6zmtxfl6 5zpbcxmw ez3w7ksf qscpr55t trknkzap 7yyt45sc g6jrw7qz',:app_id=>1)
but this does not touch last_registered_at if the device already exist.
So i guess it's missing in your documentation how to touch last_registered_at field that I guess you can do with:
device = APN::Device.find(1)