I don't agree horizontal scrolling is not easy to use on a touch device. Seeing my 9 months daughter slide through a horizontal gallery with animal images and sounds confirms this. It is as a natural gesture as any other gesture.
However, when combining horizontal and vertical scrolling, you have to be pay extra attention, since the gestures could be misinterpreted. One strategy to mitigate this risk is to add some friction to one of the directions.
For example, on a horizontal scrolling gallery, make the movement discrete, rather than continuous. This means having each element snap to a fixed position. Moving to the next or previous element requires a little extra effort, the movement is initiated only after you slide your finger for more than 50px let's say. The vertical scrolling page where such a gallery would exist scrolls normally.
There are plenty of situations where you can make use of horizontally positioned containers, especially on a smaller screen where you have to prioritize information.