If the critiquers would spend the time they put into critiquing into demonstrating their own great prowess into programming the superior application they seem capable of programming, the user would have more choices, and those who are trying to provide some service in the meantime will not be unnecessarily disparaged. Not using Unix myself or knowing other diffs programs for the mac, I would be happy to use this, even if it is slow in comparing large text files (and though it only shows the lines that have been changed rather than the exact text). I enjoyed AlphaOmega's file concatenating program, so at least I have found some use for their software. So, why don't we prove ourselves with actions and save the real critiques for the programs which are actually harmful in some way (whether in function or content)?