MicroCash is going to include every SolidCoin in it,
Does it mean that SolidCoin is converted to MicroCash? No more SolidCoin but MicroCash when it becomes active?
Yeah
Most people won't accept extremely premined altcoin.
It's not premined, realsolid is only transferring the coins you already own over into the new system. This will be done through the mcxnow.com exchange. It seems fair to me, it rewards the people who were patient with the project and didn't dump there coins. (Personally I have very few left.)
Not only that. Everybody still can buy solidcoins at a low price. It is a risk (Microcash may never be released or RS can change his mind and do smth unexpected again) but they are cheap.