I read about prowl a few weeks ago, and quickly dismissed it as I believed it required growl sending him the alerts. Actually it doesn’t!
Here’s the description from the website:
Prowl is a Growl client for the iPhone. Notifications from your Mac (or even Windows! see the FAQ) can be sent to your iPhone over push, with a full range of customization and grace you expect.
Just go the the prowl website, create your account, log in, go to settings and generate your API key. Once you’re done, download the prowl client for iPhone (2.79E if I remember correctly) and start it once, it will register your phone on the website.
Now, download the CLI client here (not yet in ports) and start playing around!