SportsTap (iPhone: free)
“I like a lot of North American sports, and I don't get my scores when I'm in Asia or Europe,” Poon Tip says. “I guess if I became a soccer fan, I wouldn't need that, but for football and basketball I need this app.” It also lets you follow hockey, baseball, U.S. college sports, golf, tennis and various motor sports. If you've got a BlackBerry, the closest thing out there seems to be getting ESPN alerts sent to your device. sportstap.mobi