Duration of log-in queue skipping after donation

Hi,

I was wondering about following sentence "No waiting in the log-in queue on all realms (does not apply to battlegrounds or dungeon finder) (Restricted for Lordaeron. See below.)" from this thread (http://forum.warmane.com/showthread.php?t=307442). The "see below" shows this sentence "Lordaeron requires 5 coins minimum spent on the marketplace on a SINGLE item in order to permit queue skipping for 30 days." which indicates that queue skipping on Lordaeron only works for 30 days. It is no where mentioned if this is different for other realms. My question is the following:

If I do a 10 dollar donation, will I be able to skip log-in queue on Icecrown for all time to come, or is it limited to some shorter time? And if it is shorter, what is the duration?

it's for all time.

Nice! Does it actually have to be 10$ or can it be less? If less, how much?

Donating any amount lets you skip queue. The amount that is usually mentioned is 10 euros because that's the minimum for most donation methods. Check donation window to see what's available to you.