out of coincidence I was looking into workaround for making pharo work on my android tablet and google nexus phone. I found splashtop app that allow me to remotely control my imac and make it appear as if I run Pharo from android.
http://www.splashtop.com/Splashtop works with all OS, and is free to use for private usage. I even tried opening video on my imac and streamed with little lag to my android devices even though my connection is very slow (100kbs/s) , so I highly recommend to anyone who want to work with pharo on its mobile / portable device of choice. The disadvantage is that you will need a desktop/laptop running for this to work, but then who does not own these days.