Just a quick vídeo to demo the USB host feature i have been able to enable on the PlayBook. I will be posting instructions soon on how to do this on my blog: http://www.eltecnoblog.com
You can get a working cable here: http://www.amazon.com/gp/product/B005FUNYSA/ref=as_li_ss_tl?ie=UTF8&tag=nomadanaly-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B005FUNYSA
Big thanks to dingleberry creators.