Re: Solidcoin and reaper;
Now that we got that settled;
Litecoin is the "other" cryptocurrency at this point, and I could see a future where it's used as an intercurrency exchange medium between established exchanges in order to keep price differences in Bitcoin viable to trade, so that eventually Litecoins are the ones going round in circles behind the scenes, while Bitcoins stay unconsolidated and a bearer of independant value. Litecoins make it possible to set up microexchanges at a low entry point, not having to s#it around with Dwolla for the unscrupulous types, and being a whole lot easier to come by for the average joe. Or as posited earlier, Litecoin may be adapt at microtransactions because you are still dealing with round numbers at minuscule levels of payment, people can get their hands on them easier, and numbers going up and down quickly make happier people than just watching interest compile.
How about a bank that you put BTC into, and it pays out compounded interest in Litecoin, so that you can feel like you are getting a better return than what you actually are? LTC becomes sort of a token system that you can then cash out on, without having to deal with crap-ass pizza. Hell, take the metaphor even further. Set up a swag shoppe with Giftcards and T-shirts and make LTC the de facto currency, offering to exchange BTC locally, and make bank off of the exchange.