The GemRB Game Engine is is a port of the original Infinity Engine (the one of Baldur´s Gate, Icewind Dale, Planescape: Torment, etc...) to Linux/Unix, MacOs X and Windows with some enhancements.
Quote:
GemRB V0.7.0 (2011-12-30):
New features:
- one can play through the whole Baldur´s Gate saga
- custom TTF fonts support
- arbitrarily sortable casting list
- ios configuration interface, xcode project
- more pst spawn ini flags, individual critical hit animations