User-Agent: Googlebot-Mobile
Disallow: /
Allow: /mb/

User-Agent:Y!J-SRD/1.0
Disallow: /
Allow: /mb/

User-Agent:Y!J-MBS/1.0
Disallow: /
Allow: /mb/

User-Agent:ichiro
Disallow: /
Allow: /mb/

User-Agent: Slurp
Disallow: /mb/