What single piece of software do you most admire, and why?
- by Burton
As a developer, I too often find fault with the software that I use day to day. Unintuitive interfaces, etc. But there are those rare exceptions. Regardless of whether the software in question is a programmers' tool, tell me about software you have used:
What has inspired admiration?
What software made you re-remember simplicity? (or whatever gauge of awesomeness works for you).
Only one piece of software per post, please.