Thought those of you using a Mac might be interested to know that Diabetes Pilot just came out with a Mac version. They also have a Windows and iPhone version (and Palm and Windows Mobile, if anyone still uses those). The desktop versions sync flawlessly with the iPhone/iPod version, making it very easy to track data, and their food database and ability to group foods into “meals” is also very useful.
I’ve heard that the next version may be able to upload pump and meter data, which would make it even better.
The technical support is also excellent and they will get back to you quickly about problems or feature suggestions, etc. (or, at least they did for me).
(I should note that I don’t work for the company nor even own the software, though I am debating purchasing it. You can download a free trial if you’re interested in trying it out.)