PVI has announced a Wacom touchscreen option (
PVI adding "touch" to eink). If this is what the Astak devices will use, then (a) it needs a special stylus (no finger input) and (b) E-Ink's $3,000 6" prototype won't be generally available until June. So the initial 5" and 6" Astaks probably won't have a touchscreen. Wacom works very well on the iLiad by the way, but it does draw power.