Yesterday I spoke at the Northwest C++ Users Group, presenting my work on the ZeroBUGS Debugger for Linux. This in itself isn't that remarkable (I basically reused the presentation I did at Google's Kirkland offices back in March and spiced it up with some humor and C++ code).
I projected my slides off a Powerbook. Not so remarkable either, even considering that the topic was a Linux-based project.
The Northwest C++ Users Group meetings are currently hosted by Microsoft. So I did a Linux gig in the Lion's lair, and I lived to talk about it. Pleasantly remarkable.