The Mac version of the upcoming game is being developed in-house and will be a native OS X application. Mac specific features include support for full screen, widescreen, trackpads, and iCloud. The developer is also looking into Mountain Lion's upcoming Game Center features, but can't commit to anything until after the OS is released.
MORE OF THE GREATEST ROLE-PLAYING GAME OF ALL TIME FOR YOUR MAC
Baldur’s Gate: Enhanced Edition™ runs on an upgraded and improved version of the Infinity Engine. It includes the entire Baldur’s Gate adventure, the Tales of the Sword Coast expansion pack, and never before seen content including a new adventure and a new party member.
The Enhanced Edition will include a variety of Mac OS X specific features, including widescreen and iCloud support.
EPIC STORY AND ADVENTURE AT UNPRECEDENTED RESOLUTION