Usability 
There is some great baseball coverage on the mobile web. If you can't be near a radio or TV you can still follow the games play by play and pitch by pitch with the mobile web on your phone. ESPN (mobile.espn.com) does a good job with baseball, very similar to their NFL live coverage that I raved about a while about. But I think MLB.com's live coverage (m.mlb.com) is even better than ESPN's A unique feature of the MLB site is a pitch by pitch graphic. The the second image below should give you a good idea of how it looks. The site also has game photos, box scores, a running play by play narrative and lots of statistics to settle those bar bets. Page and image sizes are reasonable so the screens load quickly
In addition to the mobile web coverage, MLB.com has paid apps for iOS, Android and BlackBerry 10 or you can sign to receive 5 to 10 text alerts during each of your team's games for $3.99/month.
