I played a bit with my friend Fabien's iPhone app, that let you push notifications to your device, simply using a REST API.
I've come up with a simple IRC bot that connects to the specified channel, and from there send you any message that matches a specific regexp.
The AnyEvent framework is pretty cool for this kind of things. This is what I used to build the Perl5 AppNotifications API wrapper (in the process of being uploaded to CPAN now).
Improvements to really make it useful:
- implement blackout hours where the notifications is silent
- simple IRC command to switch from silent/noisy
If you want the app, search for 'notifications' in the app store, the app is sold by CONOVAE. Then, you'll have access to the API as well.