[rmk2]

Replying to this because I can't reply to the child comment.

This is something I keep hearing, and I keep linking to the same thing. "Download and One-Click Install" can easily be done on Linux. In fact, that's even what it is called: "One Click Install", at least as far as openSUSE is concerned.

Explanation: http://en.opensuse.org/openSUSE:One_Click_Install

Example: http://software.opensuse.org/package/chromium

Bonus: It still adds a repository so you have a working update path that plays nicely with the centralised package management that lets you manage every single package centrally, instead of having half a gazillion individual updaters, bundled libs etc.