Wait what? There's a free Startup Edition?!? I've been looking all over for free issue management software that doesn't suck and here Fogbugz and Kiln are free for little 1-man software shops.
What great news! I've been using the EpicWin iPhone app for issue management and DropBox for source control up to now. Every time I thought about it for any length of time, I'd get really nervous. :)
Signing up right now.
Edit: Also, this made me so happy, I signed up for HN, after lurking for over a year, just so I could say so. Now that's great marketing.