The client doesn't matter.
Consumers will never download a client. Never, ever, ever. The standard qt client is for pro miners only - and completely irrelevant for normal users.
I don't agree. Many users and especially security sensitive users and users possessing a big amount of funds favor local wallets. That's just a fact.
That's not who they are going after. Security sensitive miners are still a niche in the grand scheme of things. Neucoin is trying to do something different, to reach different people. New people. They're going after the millions of Gmail average joes who have no idea what a client even is, and should never have to know. They don't know anything about computers. Let alone client downloads and source codes. They just want to click something on their phone.
And it's not just an online wallet, it's an online mining app too. Look again at the "mining" interface I posted a screenshot of.
http://i.imgur.com/rCFK7pj.pngIt's like sending an attachment with Gmail (but you're mining!). That easy.
But what really makes me hopeful about Neucoin is how everything seems to tie together. It seems social and viral to me. A regular user (who may only by vaguely aware thgere is something called bitcoin but not sure what it is) wins some "neucoins" by playing a facebook game on his phone. One click and he's on My Neucoin which looks like a slick bank app. One more click and his coins are "growing" (they're mining but the user doesn't even need to know). Then he can send them to another game to buy a magic, etc. Then he wins more neucoins by challenging someone to a game on twitter. That's how you convert a ton of people.