When Google released Buzz back in February, Android users with 2.0 or higher were the only group to fully enjoy it from their mobile device. Today Google has updated Buzz work on any browser. This is likely an attempt by Google raise the popularity of Buzz.
Just type buzz.google.com in phones browser and you will be able to login an enjoy Buzz in all its glory. From here you can view the stream of buzz posts, comment on post or even produce your own post both public and privately. If you have a pre 2.0 version of Android and always wanted to try Buzz from your phone, you can do so now.