#If you want to have a peculiar page to iPhone displayed with same URL as PC.

# Your blog URL style is http://example.com/, the code is added to .htaccess (http://example.com/.htaccess)

RewriteEngine on
RewriteCond %{HTTP_USER_AGENT} (iPhone|iPod)
RewriteCond %{REQUEST_URI} !^/m/
RewriteRule ^(.*)\.html$ /m/$1.html [L]

# Your blog URL styles is http://example.com/blog/, the code is added to .htaccess (http://example.com/blog/.htaccess)

Rewriteengine onq
RewriteCond %{HTTP_USER_AGENT} (iPhone|iPod)
RewriteCond %{REQUEST_URI} !/m/
RewriteRule /blog/(.*)\.html$ /blog/m/$1.html [L]