I've been interning at a company, and they only know boy me. Once I graduate (boy name on my thesis is unavoidable), I hope to land a job at this company (they'd be dumb not to hire me and have said so). And then, I'll feel free to start my transition. Alternately, I'll find myself back in academia, where my history is open and public. So in work, stealth is impossible. Any friends worth keeping will accept a transperson, so stealth is pointless.
In day-to-day interactions with people: I hope somebody asks me if I'm ftm or mtf some day. I hate the idea of FFS, so I think that's the best I can hope for.