X.org Questions

[Ed Sutherland]

After looking at screenshots of X.org, it seems to be more graphically  
up-to-date than XFree86. But, I have some questions:

1) Can X.org be apt-gotten? (otherwise, where and how)
2) How difficult is replacing xfree with x.org?
3) Any issues specific to the ppc architecture I should be aware? Thanks.
Ed