Didn't want to make an off topic post in the other thread, but in future XenPushover will support a new Pushover feature as outlined here:Plus it can be a bit finicky for a user to setup, downloading the app, registering a seperate pushover account, logging into the pushover site on a desktop computer instead so it's easier to navigate depending on your phone, getting pushover codes, figuring out what to do with the codes, inserting those codes into their account page on each forum they want it to work on, wondering if you did it right and trying to figure out how to test it by getting another user to action a notification...
http://updates.pushover.net/post/108648717687/announcing-pushover-notification-subscriptions
Should make the process a little bit smoother (though they'll still need a Pushover account).
Also, I guess I should probably add a "test" feature to save people scrambling around trying to generate alerts