@Akram: first of all, me is extremely widespread even in formal contexts. Secondly and most importantly, "informal" is not "wrong", contrary to what you suggest in your answer.
– RegDwigнtJul 06 '11 at 09:10
@Reg: Thanks for confirmation. I wasn't sure, but I didn't find it "wrong" to say "Me." if a professor calls you for example or in some business meeting (if you can consider them formal contexts).
– AlenannoJul 06 '11 at 09:57
Sorry, this is wrong. The unmarked form for pronouns in English is the objective, not the nominative one. This has been discussed over and over and over and over again.
– RegDwigнtJul 06 '11 at 09:06