Reply to Wish list: what features would you like to see in a controller/mixer hybrid?

Hi guys,
I'm currently getting started in the hardware development business and am in the process of designing a 2-channel DJ controller/mixer hybrid in the $200-300 price range. I have a few unusual ideas that I will integrate into the product, but I'd love to hear from you, the community, what kind of features you would really like to see on a product like this. Additionally, what traditional features could you do without? For instance, I'd like to drop jog wheels and add a chunky browse knob. Please let me know - all input is highly appreciated and will be taken into account.
Thanks!
Argus