Joel on Software recently ran a five part series (1, 2, 3, 4, 5) sharing anecdotes from the development of the latest version of his company's bug tracking product, FogBugz.

I enjoyed part 3's discussion of their proprietary ASP-to-PHP compiler that helps them create a Unix (PHP) version from the same source tree as their Windows (ASP) version, especially the mention of the difference between Simonyi's ("Apps") Hungarian Notation and Petzold's ("Systems") Hungarian Notation. Petzold's version was popularized in the Windows world by his books; see a discussion about the two versions, and Simonyi's original paper.