Last week, the Department of Transportation forbid its employees to upgrade to Vista, IE 7, and Office 2007:

In a memo to his staff, the DOT's CIO Daniel Mintz says he has placed "an indefinite moratorium" on the upgrades as "there appears to be no compelling technical or business case for upgrading to these new Microsoft software products. Furthermore, there appears to be specific reasons not to upgrade."

Well, at least CSS support is a little better in IE 7 than IE 6. But I also see no compelling reason for upgrading to Vista. Maybe if I was an MS stockholder I'd feel different. Maybe.