This app is very, very cool, but with a few issues that I'd like to see them fix. I've had the MLB At Bat app on my iPhone the last 2 years, and it started out very cool and just kept getting even better.
The iPad app visually is stunning, but there are a few features that are available in the iPhone versions that AREN'T in the iPad version for some reason, most notably, the ability to watch video highlights of a particular game AFTER the game is over. Unless I'm missing something, all you can do is view the box score after the game ends. I just tested it on the iPhone version and pulled up a game from yesterday, and all the video highlights are available.
However, this is a small quibble. It's amazing how much information is in this app. You get updated lineups for each team, so if for example, a team's cleanup hitter is leading off an inning, the lineup is presented from 4 to 9, followed by 1 to 3. You can watch video highlights in a popup screen while still watching the current game situation on the bulk of the screen. Clicking on any player in either the lineup or the batter vs pitcher window on the bottom of the screen makes a baseball card popup for that player. All games from that day are in a window at the top of the screen, so it's easy to see the situation for any other game. And of course, it has audio (both teams) for every game for free.
For video, you only get one free game a day (assuming it's not in your area) - to watch any of the others, you have to have an MLB.tv subscription.
All in all, I highly recommend this app. It's been one of the best apps on the iPhone for years and is ever better now.