Jambox vs Big Jambox: How do they compare?

Hey guys,

So - I'm in need of a portable Bluetooth speaker. I've currently got a Creative D100 which is... basically what you'd expect for $60.

I'm in Australia, so the Big Jambox isn't available yet. I'm just curious - how do the two compare? Are there situations where one is preferrable over the other? I'd largely be using it when travelling or set up at a desk I'm using. I probably won't be looking to throw house parties with one.

Any thoughts?