This is great news for Mac owners. You no longer need to pay for OS X updates, starting today with Mavericks (OS X 10.9).
This is also great news for people like me, running small software companies, as customers of our software will be much more likely to keep up-to-date with the latest OS X. That means less support, and more time for improving our software.
Poker Copilot works with Mavericks, although you'll need to agree to OS X's ominous-sounding request to let Poker Copilot "control your computer". This, in the context of Poker Copilot, means, "keep track of where online poker room windows are on the screen".
Okay, I'm off to install Mavericks on my MacBook Pro.