Reply to What is the most portable setup? (Laptop + Controller + ....?) (w/No external power)

I was believeing of possibly switching a setup. I like to mix on-the-go. Portability and functionality are key. I would like to minimize what I am carrying around now, or would at least like to know if anyone has anything else that works for them. At the moment I am using an S2. Is there anything smaller and more compact that is recommended? Something that is as professional, but smaller? Of course, something that doesn't have to be powered externally. I would like to use this without having to plug this into any type of outlet.

I would even be interested if I could use my laptop and possibly a Z1? Would this work? Can you control traktor pro on the keyboard and use the Z1 to mix and cue?

I even have the traktor app on the iPad. What would be the best way to integrate this so I can mix, make mixes, dj on the go? What soundcard should I buy?

I would just like to have an ultra-portable, but 100% functional setup that I can carry with me easily.

Thanks! (Sorry if this is a noob question.)