[Russic]

edit: already answered.

Brilliant move in my opinion just because Macs are often marketed to people who aren't necessarily "computer" people (like our parents). I would be willing to guess that the vast majority of people in that category would never download a single application the traditional way. Having an app store though removes the barriers that computer folk like us don't necessarily notice.

On top of that this is a great solution for those of us with multiple computers. Since it acts in the same way as the mobile apps, buying an app with one account means it can go on other computers. Not a great deal for developers who rely on family licenses, but there is an argument that practice could hinder sales to begin with (personal theory).

Unfortunately as far as I know there are no demos or lite versions to try out. If you want to try a demo you'll have to visit the site and download it the traditional way. That's not terribly effective in my opinion and I don't understand why mobile apps can do that but mac apps can't.

edit 2: I also really like the fact that you'll be able to finally buy the core apps (garageband, iphoto, imovie, keynote, pages etc.) on their own without having to buy the bundle if you don't want it. That's a big plus for consumers that have no need for certain applications.