There is a lot of devices with a single-touch screen and the Oneiric Unity has no always-visible Dash icon. So, how can I get it without keyboard providing that moving pointer to the edge is almost impossible on the majority of resistive touchscreens?

One way I know of is to use easystroke with Button1 for gestures and short timeout. Didn't try Win-button emulation yet but there is a CLI way:
Is there a way to launch Unity Dash outside of Unity?

Another ways you know of such as easy Taskbar-icon creation?