Hi.  Why doesn't ERB work with valid XML processing instructions, as
suggested by lots of people[1]? Is there any good reason we're stuck
with invalid, nonstandard, Microsoft-inspired "<%...%>" tags?  It
shouldn't be difficult to allow both syntaxes (someone even made a
patch[2]), and .rhtml files could finally be valid XHTML.

References:
[1]
http://groups.google.com/group/comp.lang.ruby/browse_thread/thread/936cf51a2b8b01c0/aed5dbbdac99cdfb?q=erb+xml&rnum=9#aed5dbbdac99cdfb
[2]
http://groups.google.com/group/comp.lang.ruby/browse_thread/thread/602c5f90e980dffb/9f9c6229a3313e73?q=erb+xml&rnum=2