Deus Ex: The Fall will retail for £4.99 / $6.99, and this "first instalment of the mobile series" will be available in the summer.
I never asked for this
The next Deus Ex game will be a first-person RPG shooter for iPhone and iPad. Its name Deus Ex: The Fall.
According to Jean-François Dugas, executive game director at Eidos-Montréal, this will be the "full Deus Ex experience", which means "exploration, action, hacking, stealth, social enhancers, player choice, and consequence.
As a side note Square Enix is intending to make tons of things like this for iOS, be prepared!