[Haskell-cafe] Arrows tutorial

[Tim Newsham]

Small arrows tutorial (sorta, I'm learning myself and trying to doc
as I go):

   http://www.thenewsh.com/~newsham/x/arrow.txt

comments welcome.

I ran into a type issue I couldnt resolve.  I'd love any comments on that 
(documented near the bottom, liftA2'). Also, I'd like to put some info 
about ghci -farrows syntax when I figure that stuff out.  If anyone feels 
like translating some examples into do-notation or coming up with new 
examples that showcase do-notation, please post em or send them to me.

Tim Newsham
http://www.thenewsh.com/~newsham/