Once again JWZ's Law of Software Envelopment is right
From Jamie Zawinski Law of Software Envelopment:
Every program attempts to expand until it can read mail. Those programs which cannot so expand are replaced by ones which can.
and once again it's true. This time it's Corel WordPerfect 12 that takes the award:
Corel is cozying up to small business by marketing a value-priced productivity suite catered to the needs of organizations with fewer than 50 PCs. Corel says it is targeting small businesses with the applications that they must have and nothing more. The suite, named WordPerfect Office 12 - Small Business Edition, contains the newly minted WordPerfect Mail client and security software from Symantec.