Nifty Notifications in Mac OS X
by Gordon Meyer
LanOSD, which is free, works great for this. There's hardly anything to configure, just run the application and messages sent from any computer will simultaneously appear on the screens of all of the computers on your local network. You can send messages using AppleScript, which is what I do in conjunction with XTension, or via a nifty command line program that's included with the download. It's perfect for integrating with your shell, perl, or python scripts.
I recently came across a similar program, Growl, that also provides beautiful onscreen notifications. It's supported by a (growing) number of applications, but it doesn't broadcast messages on your network. It can still be pretty handy, and perhaps some enterprising developer will create a growl-compatible notifier that allows distributed messaging.
Growl vs. LanOSD
Growl is a lot better than LanOSD. It supports configurable displays (LanOSD locks you in to their one display, which has bugs), it's open-source, it has much better developer support (LanOSD requires using AppleScript or calling their command-line tool, whereas Growl has bindings for Cocoa, Carbon, Java, Perl, Python, Tcl, and AppleScript), it's under heavy development (I haven't seen an update to LanOSD in quite a while), and it just generally works better.
Good to hear
That's great, Eridius, when Growl supports network notifications it will be a lot more useful for home automation. I'm looking forward to it.