I'm considering to buy a Samsung Galaxy S. It's not available in our country so I'll get an international version via Amazon (no warranty) or buy it in The Netherlands (probably = international + 2 year factory warranty). So this means I won't have access to any OTA upgrades right because from what I understand, your local carrier has to SPECIFICALLY support a particular phone for this service, correct? Now, if I download Android 2.2 ,does this mean I automatically have to get an ROM upgrade? It's NOT like say upgrading a Wordpress installation which takes like a minute and is painless? And, does it void the warranty of the Galaxy when one does this?