sending push notifications

[Larry Martell]

I'm looking for people's experiences with the different ways to send
push notifications to mobile devices. I have an app that will be
running on Amazon, so I can use their SNS API or I can do it myself.
>From googling there appear to be a few different packages but PyAPNs
and python-gcm seem to be the most popular. And for interfacing to SNS
boto seems to be the choice. Anyone here used any of these or other
packages?