Yamaha pack too much information on the screen for it to be effective as a Touch Screen, Frans. You would need tiny little fingers!

TBH, I am having some problems with the Kronos, too (playing it at the local store). The fonts are VERY small compared to Korg and Roland arrangers' touch screens. It's pretty hard in a hurry to avoid hitting the wrong thing.

Thing is, here's an $1800 arranger (and its cheaper cousin) able to do the same audio to pads and sampler playback tricks that the $3500 PA3X can do. In fact, from the sound of it, it looks like adding audio drums to a style will be a lot more user-friendly than Korg make it. Of course it doesn't have ALL of the PA3's bells and whistles. But it just got a couple of the big ones! At nearly half the price!
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An arranger is just a tool. What matters is what you build with it..!