"f you're reading this on the iPad or browsing through our iPad magazine, you're going to want to read this. A new study from Belkin, Harvard School of Public Health, and Microsoft has found that tablet users may be at high risk to develop neck discomfort based on behaviors driven by the limitations of tablet designs."
"If you happen to travel with your iPad or tablet and use it to present, you might be interested in a portable stand. Until recently, iPad stands where not very portable and impractical for me to take on my travels. Now I have two great options that fold flat and fit in my backpack: Justand Go ($79.00) and Belkin Stage Portable ($87.99)."
You can connect keyboard, USB hard drives as well as gaming controllers to your Android phone or tablet using a USB OTG adapter. Have a look on this tutorial.