You have use the trial account as a target for the Recruit a Friend program, but you cannot send a RAF invite from a trial account.
No.
World of Warcraft trial accounts do use the Cataclysm maps but you would not be able to access them as you can only level up to level 20 in the trial version.
Only you can decide if you want to get world of warcraft. It is however advisable that you use a trial account to decide if you want it or not. The trial account is available at the official website below.
You cant get free World of Warcraft forever but you can have a 10-day free trial, but after that its about £10 a month onwards.
The free trial involves only Classic World of Warcraft - the next expansion pack in line is The Burning Crusade.
When you purchase World of Warcraft, you automatically receive The Burning Crusade with it as Blizzard recently merged the two. There is no more free trial for Burning Crusade.
If one is interested in trying out the MMORPG World of Warcraft, then a free trial is probably the best way to get started. The recommended method of doing this is to go directly to the WoW website and download the World of Warcraft Starter Edition.
It would seem that you need to have a full World of Warcraft license to purchase this mount.
The trial account isn't playable after the trial unless you convert it to a paid account.
world of warcraft.com
The World of Warcraft is available for free but most trial versions are only good for fifteen or twenty days. Check out a site such as battle dot net, which has it available.