tracke wrote on 12/11/09 at 11:29:48:

In my (honest!) opinion the solution is to know everything and to be flexible: 1 c4 Nf6! and then: 2 d4 e6! , 2 Nc3 e5! , 2 g3 c6! , 2 Nf3 c5! , 2 (others) g6! tracke  :)

Are you joking?  If not, that really is over the top.  I can see no reason why Black should have to have both 1...e5 and 1...c5 (which effectively is what you recommend) in his repertoire.  Maybe, for example, you would be good enough to explain what Black gains by delaying ...c5 until after 2...Nf6 3.Nf3, particularly since the thereby foregoes 2...Nc6.