Looks tempting to me as well. Touchscreen seems like the most natural way to control a device like this (especially compared to the infuriating joystick/button control on my 705), provided they implement it well.
I was disappointed to see that the reviewers were still having problems with the altitude/grade readout. I've had that same problem intermittently going back several years on both my Edge 705 and Edge 305 before that.