Doubtful.  I thought the point of Litecoin was for small purchases.  No need for confirmation is small purchases.  A non-finney double spend is essentially impossible to pull off if the seller simply waits 60 seconds or so.

A seller accepting 0-confirm sales is vulnerable to a Finney attack but given the staggering amount of hashing power required to even attempt that nobody is going to spend $80,000 to build a hashing farm to double spend a 1BTC copy of angry birds.