It won't harm anything, if you are really worried and don't want to update it, don't update it, or you can just wait till the next upgrade to upgrade the iPhone.
Yes, just restore (or upgrade if a newer version is available) in iTunes. Hope I helped! :)
If you have a version of Windows installed on your Mac then you can install a suitable upgrade otherwise you will need a full version of Windows.
It means you have an upgrade version, you should have an older version in order to install the upgrade version.
There is only one version of the game, but 3 expansions. You must upgrade in order of expansion, up to the latest, you want to play all of the content/races available.
If you have an upgrade version you have to have one of the previous versions too. Without it upgrade will not install on your computer. Full version means that you don't have to have preinstalled older version of photoshop.
To move from Photoshop 7 to CS4 will require a purchased full copy of Photoshop CS4 as there is no upgrade available for versions of Photoshop older than 8 - the first CS version.
yes
No, This is the most worst thing about NOKIA mobile phone, you cant upgrade to the next available version of Operating System.
6.60 is already an upgrade from 5.50.
6.60 is already an upgrade from 5.50.
yes
yes