I'd say it's still ambiguous. Liveable for us or liveable for something? Even on Earth we have hyperthermophiles (http://en.wikipedia.org/wiki/Hyperthermophile

I'd say it's still ambiguous. Liveable for us or liveable for something? Even on Earth we have hyperthermophiles (http://en.wikipedia.org/wiki/Hyperthermophile http://en.wikipedia.org/wiki/Hyperthermophile) which can tolerate temperatures of up to 122 celsius. And before anyone says "water boils at 100C", that's only at Earth-ambient atmospheric pressure.