http://iscoresports.com/

I'll buy the baseball app regardless, but am wondering if there is any way to use on my Macbook?

As posted elsewhere by FTM,
no -- the iScore app does not run on PCs or Macs.
It is an iphone/itouch or iPad product.

There have been suggestions that they create a version to run on laptops, and they have indicated not likely, not high on their priority list, they are focused on the mobile devices.

Makes sense. The first reason (and only) I've seen to shell out the big bucks for an iPad. Maybe next season. War the Rangers v. San Francisco. Late.