The blockchain size limit is perhaps one of the biggest question/problem in the development right now,
but it seems to be going in the "unlimited" direction.
But this problem is not solved yet.
And right now we are not hitting the hard limit.
When/if we hit it, it will influence the transaction fees.
They will have to go up quite a bit for the "off chain transactions" to be interesting.
And maybe they will solve it by promoting LTC for small transactions.
Or Feathercoin, or Blightcoin, or any other coin.
This is assuming that nothing more elegant than another blockchain can be used for the "off chain transactions" scheme.
Right now small BTC transactions are limited by amount, because of this problem.
No. That's not even related.
The minimum limit is to -temporarily- protect the blockchain from being bloated with unspendable transactions while the developers are working towards a more market-driven solution.
And because Litecoin is a copy of Bitcoin... how are these same problems dealt with?