Licensing Keynote

I'm not qualified to answer that, but I'd think the answer is no...although you might get by with the technicality you won't use both copies simultaneously (or will you). BTW, you might consider exporting your presentation as a Quicktime video and then won't need Keynote on the display machine.

Dave

Anyone can download the trial. It will allow you to edit documents for 30 days, after that, it becomes a Keynote Player only.

I think you would have to look at the license agreement for the trial software (if there is such an agreement) in order to answer this question.

From the licensing agreement:
http://images.apple.com/legal/sla/docs/iwork.pdf

*2. Permitted License Uses and Restrictions.*
*A. Trial License.* If you are using the trial version of the Apple Software, this License allows you to install and use the Apple Software on a single Apple-labeled computer for the sole purpose of evaluating the Apple Software. The trial version of the Apple Software expires thirty (30) days after the date you first launch the Apple Software. Upon the trial expiration, you may continue to open files in the trial version of the Apple Software, but you will not be able to save, print or export files.

So, you can use it fully for 30 days, after 30 days you can only use it as a Keynote, Numbers, and Pages viewer.

As long as there's no serial number entered into it, then you're ok.