Two days back browsed Mysuppot via iphone, looks great.
Yes, you can finally login to metalink aka Oracle my support on your smart phone .Its good to see Oracle launched myoracle support for mobile, which can help you expand online content to new platforms . Though current release seems with Limited functionality as compare with normal HTML version.
Just go to http://support.oracle.mobi/ 
You just need to sign in with your regular My Oracle Support "SSO" user name and password, and then you should be good to go.