Mainly the native feel. For example, you can use standard Cmd-based keybindings to control tabs and panes, and get smooth mouse scrolling in each pane.
Currently we only have AMI's in US Regions, although Metlo should work anywhere... Let me know which region you want to deploy in and I can make an AMI there right away :)
I haven't read every comment here but is this a direct repeal to the common business logic: "do what increases the shareholder's profits"?. i.e. moving business focus away from pure profit and onto values that benefit the greater good (environmentalism, diversity, etc.)