i got office 2011 home & business (academic) and was able to activate it on my desktop and laptop no problem. i just reformatted and try to re-activate it on my mbp and it said that i've exceeded the number of activation so i had to call'em. i called the number and when sally (automated) looked for my install ID, she asked me how many computers i have it installed. i said 1, and she said she couldn't help me at this time. well ok i called again and this time i said 2, and she still couldn't help me. she won't even let me talk to a real person and just said "good bye"...what a biatch well anyways, can u install office mac 2011 on a desktop and laptop using same key i know u can do this with the windows version.