What will be the fate of the Bitcoin alternatives?
Litecoin? Does the scrpyt requirement make it profitable to mine? (mining bitcoin stopped being worth it a long time ago)
Any opinions about Ripple or about opencoin.org?
Litecoins can’t be mined by ASIC machines, yet. So yes, they are still profitable to mine using GPU based miners. There are four times the number of litecoins able to be eventually mined as bitcoins. Their current price is $2.
Sorry, I don't know anything about those.