It is almost certainly accurate to say that we are all very well aware of the ergonomic dangers associated with lengthy computer usage these days. Any individual who isn't content with their awareness of the facts can immediately bring themselves up to speed-- the varying risks are well documented and widely available.
The rapid growth in the usage of touch screen appliances, tablet computers certainly, but also smartphones and e-readers, poses a possible problem for many users. In fact, for quite a few users, a "mobile" device with a touch screen may actually be their most frequently used computing device.
The continuous use of such device