I've got some business cards!
I've been to several events of various natures now (like the Hardware Meetup), and at each one I've found that a 'business card' or two would be really handy to give to people so that they can remember the address of this website.
After fiddling with the design over about a week I (and Mythdael!) came up with the design you see above. Personally, I'm really pleased with them, so I decided to post here to show them off :-)
I'm finding that it's a rather good idea to promote and build your brand at these kind of events by showing people the cool things that you've created and learnt, and business cards seem to be just the thing that helps you do it.