Carlos Boozer, now with the Chicago Bulls, had a rep from the Bulls come to his hotel during the free agent process:

He presented to Boozer the newest and most cutting-edge recruitment tool that the Bulls, and several other NBA teams, had used: a decked-out iPad with a personalized app for the newly minted free agent, detailing how he would fit in with the Bulls if he would sign.

Turns out, as is typical when something new like this comes along, a lot of other teams used the same method:

Boozer wound up having a stack full of iPads by the end of free agency.