"Taking place three years prior to the events of Grand Theft Auto 3, you'll play as scorned wise guy Toni Cipriani who has just returned to Liberty City after being forced into exile for killing a made man as a favour to mob boss Salvatore Leone.
With the dust settled, the Leones welcome Toni back and put him back to work as one of their toughest soldiers"
Links: Scan 1 and Scan 2
Thanks to McReynolds in this edgeforums thread.
Also, in the latest issue of PSM in the USA, it states that swimming and interior enviroments won't be availible. We'll have more on that article in a short while. Thanks TomK