World of Warcraft is the MMORPG version of a long-running PC video game series originally named simply "Warcraft". Warcraft may have some online components to it, but is largely a game designed to be purchased at the video games store for a one time fee and then played offline, whereas World of Warcraft has NO offline component and cannot be played without an active subscription with Blizzard Entertainment unless you go to a Private Server which Blizzard doesn't condone.
Generally speaking Aion is more demading on your PC's hardware and system resources. World of Warcraft has been designed to run on many systems, including low-end ones, so that there can be a large player base. That said, World of Warcraft at the highest settings rivals Aion at low to middle settings.
World of Warcraft is available in several forms, including a base game and the expansion packs, but none of these software packages are called 'Gold Edition'. There is, however, a special gaming mouse designed for World of Warcraft that comes in a golden variation. These mice are not widely available and cost over 60 dollars.
Warcraft 3 and World of Warcraft both have a T rating.
Warcraft
Warcraft 2's expansion, Both Warcraft 3's and World of Warcraft are all online play. warcraft 2 and 3 use battle.net, while World of Warcraft is a paid subscription MMORPG
Officially, Warcraft 3 (including the frozen throne expansion) came before World of Warcraft. You can check out the whole Warcraft timeline on the World of Warcraft website in the links section below.
No plans for a warcraft 4 have been announced. It has been stated that World of Warcraft is technically their "warcraft 4" because it has been ( and still is) continuing the storyline of the warcraft universe.
Since World of Warcraft is a game designed for PC/Mac, it can't directly play on a PSP. It might be possible to stream a feed and data through, like what is possible with an iPad, but even then it's very convoluted with a small screen and limited buttons.
Warcraft 3
There is no such thing as World of Warcraft: The Frozen Throne. It is called Warcraft 3: The Frozen Throne. World of Warcraft is much different.
No, as Cataclysm is meant for World of Warcraft, not Warcraft 3.