paste-and-run apps for Linux and Windows

On various Mac vs Windows/Linux threads on /g/ Ive pointed out that the major advantage that Mac OSX holds over Windows and Linux is that to run a program you just paste it on your harddrive and click it and it runs. And people counter on these threads that its *possible* to do this on Windows and Linux also. So if its possible, why hasnt any Linux distro done it since the #1 problem on Linux is dependencies. Doesnt anyone here agree that relying on repo maintainers to sort out these dependency problems is not a professional solution which is why any serious Linux user has to use "compile everything" distros. So my question again, if its possible to make apps that just run without the need to compile or install, then why hasnt anyone done it?

>>9
IHBT, but
1. Programs foo and bar use libbaz, work fine but for some slightly crippling bug qux
2. foo's maintainers decide to statically link libbaz for portability
3. Maintainers for both foo and bar go on holiday together, die of malaria in a hurricane
4. libbaz has a major update that fixes qux
5. foo remains crippled but bar begins to gain users exponentially due to its new-found perfection.
6. bar's massive popularity renders it self-maintaining due to user patch submissions
7. bar gains enough money from paypal donations from satisfied users that their maintainers get an actual funeral
8. foo becomes vaporware in weeks and their maintainers are left in Scotland to become one with the peat bogs in which they lost their lives.