is e-smoking in public places legal in illinois?

[Oliver]

By request:

The ban on smoking in Illinois was legislated for by the Public Act 095-0017 of the Illinois General Assembly.

The section that defines smoking reads:

"Smoke" or "smoking" means the carrying, smoking, burning,
inhaling, or exhaling of any kind of lighted pipe, cigar,
cigarette, hookah, weed, herbs, or any other lighted smoking
equipment.

The crucial part is part that reads "...any kind of lighted..."
Lighted clear refers to the process of combustion, which the electronic cigarette does not produce.

Therefore the electronic cigarette is legal for use in public places in Illinois.