Brunic, I think you are touching upon something here. Though I have a legit job and income myself, I does not require much of an imagination to see how some people would find LTCBTC use of mixing services before cashing out on a deep enough exchange and get perhaps get a identity tied to the transaction.
I have aggregated LTCBTC data for some months now and are eyeballing the ratio. I am especially interested to see if a spread betting (actually pair-betting) opportunity will emerge. Will it be possible to hedge the volatility in BTC with a stake in LTC? And so forth and so on... (I have written a little bit about this in my blog here:
http://blog.aramisw.com/index.asp?action=view&filter=Economics&post=altcoins&creationdate=120724).
Nice blog post!
We never had two legit blockchains before that are completely independent from each other. It's not about what Litecoin brings that Bitcoin don't have, it's about the dynamic between them that was impossible before when you had only 1 currency. Namecoin can't serve the purpose well in my opinion, because it have a different purpose than simply being a currency, and also because merged mining cause it's value to be somewhat tied to Bitcoin. It acts more like a bonus and less like a different currency. You cannot secure your funds in Namecoin because in the case of a 51% attack, Namecoin is affected as much as Bitcoin.
Litecoin, by using Scrypt, can't be 51% at the same time as Bitcoin. Miners are also forced to choose one of the currencies, they can't choose both of them. The fact of choosing influence people toward that currency. Now, people are more used to Bitcoin, since it was the only choice before. But with the ASIC coming, all those GPU miners will be forced to choose Litecoin for a while (until Litecoin ASIC are made, if they are made). All those gamers who mined Bitcoin with their graphic card will be forced to mine Litecoin now. I said before, those GPU are not going to disappear, they are going to be used for something else.
If more GPU miners drift toward Litecoin, the interesting dynamic between blockchain will start to appear. Like you said, you could bet or hedge on one blockchain against the other, something that was impossible before. You could easily enter the market by buying BTC, transfers your BTC into LTC and get out by cashing out the LTC. Or vice-versa. Even if some freak make a program to analyze the blockchain, analyzing TWO blockchains makes following the money impossible and irrelevant, especially since they have a different tempo of validation.
If you wanted to hedge against Bitcoin before, the only option you had was using fiat funds. Now, you can hedge indefinitely by switching back and forth BTC-LTC without anybody knowing. Litecoin is the only viable option at the moment to enable this, because it needs to have small differences(different algorithm, different tempo), but staying similar enough to Bitcoin (same basic functions, same functional logic). Bitcoin needed a small brother, and I think we have it