Former Windows Head Steven Sinofsky is already Tweeting from iPhone
Thus continuing the trend of people loving the “dogfood” when they’re inside a company, and throwing it up when they’re out.
Most of the ones I notice (both with people I know and those in public) are former Microsoft employees. People leave and immediately switch to Macs, iPhones, iPads, Google Docs, Chrome, Android devices, etc.
What I never see is people leaving Apple and switching to other products — PCs, Android devices, Windows Phone, etc. I’m sure there are some out there, but for the most part ex-Apple employees seem to remain “loyal” to the brand. Read into that what you will.
Eating your own dog food is… Toxic.
