If I upgrade to Lap top do I also have to pay to upgrade to desktop?

Question

if I upgrade to Lap top do I also have to pay to upgrade to desktop?

Answer 1

Here is an excerpt from the Lion SLA; it is interesting because the license differs from the pre-installed OS vs. a purchase from the MAS; in any case, when purchased from the MAS, there is no limit - it very clearly states "on each Mac with SL you own or control". I believe the confusion about the maximum of 5 stems from the maximum of 5 computer allowed for iTunes songs.
SLA excerpt:
2. Permitted License Uses and Restrictions.
A. Standard and Preinstalled Apple Software License. Subject to the terms and conditions of this License,unless you obtained the Apple Software from the Mac App Store or under a volume license, maintenance orother written agreement from Apple, you are granted a limited, non-exclusive license to install, use and runone (1) copy of the Apple Software on a single Apple-branded computer at any one time. For example, thesestandard single-copy license terms apply to you if you obtained the Apple Software preinstalled on Apple-branded hardware.
B. License from Mac App Store. If you obtained a license for the Apple Software from the Mac App Store,then subject to the terms and conditions of this License and as permitted by the Mac App Store Usage Rulesset forth in the App Store Terms and Conditions (http://www.apple.com/legal/itunes/ww/) (“Usage Rules”), youare granted a limited, non-transferable, non-exclusive license:
to download, install, use and run for personal, non-commercial use, one (1) copy of the AppleSoftware directly on each Apple-branded computer running Mac OS X Snow Leopard or Mac OS XSnow Leopard Server (“Mac Computer”) that you own or control;
Link to page for SLA download:
http://www.apple.com/legal/sla/