[...] additional advantages of LTC besides the faster confirmation times:
- 4x transaction capacity (BTC can have 1MB of transactions per 10 min. while LTC can take 4MB)
- smaller blockchain so far (no SatoshiDice)
@transaction capacity:
Does this mean that LTC can do a bigger amount of transactions per time? Is the number of transactions BTC can do per 10 min. too low to work as a widespread world currency?
Yes, LTC can do more transactions per time with the current limit of 1MB per block.
1MB per 10 minutes (or even 4MB per 10 minutes) would not be enough for a widespread world currency. Other than actually raising the 1MB per block limit there are solutions, such as Ripple, that would help get around this problem. In effect, Bitcoin could become a "backing currency" such as gold, where you only do large transactions between banks/money services to balance out the accumulated differences from the common transactions.