cryptsy? not sure if their fully secured tho
Eh, I don't think that's really what he was describing. Cryptsy isn't really multiple client wallets, I'm under the impression that they have multiple wallets and that your account balance is just recorded in a database somewhere. That is to say that they don't generate an individual private key for each kind of coin that you store there. Furthermore they even make mention not to use their service as a wallet on the site itself.
Anyway, we are starting to get really off topic here.
Sorry about that I read the future of altcoins then read your post
Anyways my 2 bits is that a new coin should offer a feature that the other coins cannot otherwise it just becomes a clone coin
Exceptions do occur as with dogecoin if enough people accept the alt coin
So acceptance and adoption for me are the key drivers of an altcoins success if they don't have that then its likely doomed to failure assuming it doesn't perform a unique function and is essentially a clone.