Paul Robertson of the Adobe Air team has an interesting blog posting on bug free apps or the lack of such a possibility. To some extent I think it is a little easier to have this mindset if you are client-side. When you are building products in house the balance of release date vs quality control is easily managed. When a company is consulting on projects every hour spent is equated to dollars. I find the pressure to get it right within the release or warranty period is very high. No client wants to hear, “Oh we couldn’t get to that feature, but I tell you what, we will get it in version 2!”. On the consulting side there usually isn’t a version 2.

The article is good read:

Paul Roberston Blog Post