Earlier today, Apple officially launched its application store for Macintosh, with about 1,000 free and paid applications available. Snow Leopard users download the Mac OS X 10.6.6 update, and the store is included. But people using the software are in for a change. Consumers typically buy software by machine. Those people buying from the Mac App Store purchase by person. The software is attached to an identity. This is a dramatic departure from how consumer software is typically licensed. Licensing agreements typically restrict installation on one PC, sometimes two or even three...The Mac App Store changes the paradigm and usage...