Arduino on Android

Ty for your reply. Sincerely this was the most specific and clear answer in my 1 week ardui o career. Ty.

I am trying to control a dc motor from old cd rom with an arduino leonardo from my phone. I will be using a simple html page with a javascript script which i will copy on my phone. I have a galaxy mini 2 with android 2.3.

The reason I was thinking about using a tablet it is because on arduino mirc channel people told me i need a usb host to connect the arduino, but never crossed my mind wireless connection.

My question is: what do you think of this? Is it feasible? Which is thw simplest aproach, bluetooth? What is the optimal choice, wifi?.