[alphast0rm]

Here's an answer from YC partner Gary Tan:

"If you ever want to take outside investment, you'll want to be a Delaware C corp. It's just standard and investors know how to deal with it. Even Facebook started as something else, but had to reincorporate.

It's not too difficult to fix, but might as well the avoid the problem in the first place." [1]

[1] http://www.quora.com/Y-Combinator/Why-does-Y-Combinator-reco...