I posted this on the internal Temerity forums. Alot of the PC game can run natively via wineskin, so ultimately you can have a universal system. The guildwars 2 client is just that, a CiderX wrapper.
Thought Id share my experience using wineskin, which is becoming the default doorway for PC programs, games and more. While we are know about bootcamp, parallels, vmware, etc, the software is still dependent of a Windows based OS.
So how does this all work? Well, its quite simple. As all the new Macs have switched over from PowerPC to Intel based CPUs, thus making software alot more universal. Traditionally to run another system it would take some sort of emulation of the hardware, making using other operating systems sluggish and not always have code disassemble 100% correct.
This is no more a issue with todays Macs! Imagine understanding a foreign language, but finding the directions provided irrelevant. Windows.exe will make calls to system specific .dlls and core files of which the Mac does not have and vice versa.
Welcome to Wineskin! Wineskin is not OS dependent which means no windows, running PC programs as a self contained .application and NO emulation! We start by clicking on
"Create a New Blank Wrapper" as seen below. Name it as you see fit.

This file will be saved at user(your username)/applications/wineskin and I suggest making alot of copies as you dont want to rebuild a blank wrapper each time. Now to install, just right click on the icon and goto
"Show Package Contacts" as this in the gateway into your PC world, self contained.

Next click on Wineskin.app which will appear after you've clicked Show Package Contacts, as it exists in within the .app! This is what you will see.

A few options to go over. The basics, if you download a PC program you can just select Install Software as this would then take you threw the usual Setup installshield PC process as expected. As the PC people know, programs usually save to drive C:/Program Files/<name> for 32bit. Same concept here as drive_c will have a Program Files directory all ready for you. Advanced is where you can "tweak" different options. You may not have to do a single thing in here as install Software might just be it.

Congratulations welcome to your self contained mac.app so its a safe, fast pc .exe natively!
Im a arcade game historian working in the business for many years. These are all PC ptograms below. Yes. thats two Amiga logos. The Checkmark is my Amiga 3000T hard drive from 1992 when I was doing a bit of Lightwave and video toaster (Which some of you would know from the CGI of babylon 5, which was all done via a Amiga render farm)

Alot of games here that ar PC exclusive.
Here some links:
[url="http://wineskin.urgesoftware.com/tiki-index.php"]http://wineskin.urgesoftware.com/tiki-index.php[/url] Wineskin 2.5.8 free download.
[url="http://portingteam.com/frontpage"]http://portingteam.com/frontpage[/url] The portingteam! Has a database of all predone blank wineskin.apps with all needed settings on the more complex things.
[url="http://www.youtube.com/watch?feature=player_embedded&v=19Z76ctq9n4#t=123s"]http://www.youtube.com/watch?feature=player_embedded&v=19Z76ctq9n4#t=123s[/url] Modern Warfare 3 PC via Wineskin on a Mac.
Enjoy!