Here is a rant, why doesn’t every OS provide a software update service?

I may be the only one, but I doubt it, but the idea of having MANY small little services that are running to check for recent updates.  Even worse are the ones that check as I launch the app.  Has anyone told these people that when I want my document/App, I want it NOW.  If you go off and check stuff every time you launch, it seems absurd to me.

I have and am using various ones now, App Fresh and Version Tracker. These are cute and do mostly work, however I need to regularly run these apps to get my updates AND not all applications update the same way, so I have to manually have to do the upgrade anyway.

Now, provide a registration service on every OS. Each application must provide a URL to get access to information about latest releases.

Why is this not being done already? If it is, then why is it not on my OS of choice yet

Source/Kaynak : http://blogs.sun.com/eric/entry/include_a_software_update_service