[KedarMhaswade]

If you are given a choice, then isn't it easier to pick what you are most familiar with from a productivity standpoint? If your first choice is rejected, then the question comes as to what the next choice has to offer. There is no point in being obstinate about using a Mac or not using it. A lot of FOSS enthusiasts and contributors use a Mac and a great many of them don't. If, as a matter of principle, you are against a Mac or a PC and would instead insist on IBM/HP/Dell PC running Linux, assess your principles again (Remember: I don't always die for my principles, what if they are wrong?). If they still make sense to you and the company refuses to provide you with that kind of hardware, reject the offer. Can you? Ultimately what value you produce with what you have trumps what you have. No?