Using whatever editor or CLI you want sounds like a nice touch, might not be so expected in such a big company. Does this extend to browsers? Is it open to use Firefox or Opera or Chrome as your main personal web browser, or is there a corporate mandate to use Internet Explorer on every desktop within Microsoft? (I know the OP on wordpress may not read this here, but any other input is welcome)
But certainly no one's dropped by my office to ask me to stop using my alternate browser (I tend to separate my usage by my usage patterns. Work stuff on IE, personal stuff on the non-IE browser).