If the Android LiteCoin Wallet is successful, and it is truly a "lite" client (it will not have the entire block chain), then logically the next step would then make a super lite desktop client using the same technology. This will have even greater benefits for quick litecoin adoption.
This is why I think so much emphasis needs to be put on creating a truly robust "Android LiteCoin Client".
I understand that Bitcoin devs are working on pruning the blockchain, and I am sure LiteCoin is part of that effort. This effort will become more and more important, because to synch up a BitCoin/Litecoin clients now takes many hours.. But this is not a concern yet, further more I suspect if you prune too much you risk to compromise the integrity of the network.
We need to create super lite clients as soon as possible. The "Android LiteCoin Client" is only the beginning. ATM machines, POS systems, hardware wallets, all these things will be built on to of the "Lite Client". This is why I think it's important to look at the root of this issue and put all efforts on creating the Lite LiteCoin client.
Because I think in terms of adoption it's even more important then the heavy client.
I see a world where there will be some "BitCoin/LiteCoin" Full Clients and many more "Lite" Clients that rely on the Full clients to confirm their transactions. I see the ratio of Full Clients to Lite Clients be something like 1:20 ultimately.
So if you look at it from that perspective then LiteCoin only has 5% of it's own potential market, because it doesn't have a "Lite" Client.