At the Leipzig Games Convention today, Rockstar showed off the highly anticipated PC version of Grand Theft Auto IV. Eurogamer got the chance to see the game demoed.

1. Visuals will be polished well beyond what they were on the consoles versions.
2. Replay editor - the game will keep the last 30 seconds of gameplay in memory. You can at any time stop and watch what you just did. From there, you can also edit footage - chop it up, add filters, switch camera angles and so on.
3. A montage editor that lets you put together multiple 30-second clips you have saved. You can then share the movies you make via the Rockstar Social Club.
4. When asked about the 16 player online limit, the Rockstar PR person responded "We're expanding on that". Perhaps more than 16 people for the PC version?
5. You can add filters to the server list so you can have more control over the type of online matches you join.
6. Rockstar demoed the mission Three-Leaf Clover.
7. According to Eurogamer, "The visuals do indeed look more polished - lighting is more realistic and there's a much higher level of detail on both characters and environments." Animations are also said to be smoother.
8. Thanks to IGN, we now know the maximum resolution is 2560x1600
9. In addition to being able to the a keyboard and mouse, GTAIV will be able to use the 360 controller if you have one.

In addition to the details, Rockstar also released 10 new screenshots.

Sources: Eurogamer and IGN