Orkut
Orkut apps for twitter showcased here.
Twitgether – a social twitter client for iGoogle, Gmail, Facebook, Myspace and Orkut
-Supports OAuth, no password required
-Supports multiple Twitter accounts
-Mark all as read(like Google Reader)
-Automatically refresh
-Built-in Twitter Search
-Select text in a tweet to search or translate into other languages
-Integrated URL shortening services
TwitKut
TwitKut is an Orkut app that pulls your tweets and posts them on Orkut so that your friends on Orkut stay abreast with your twitter updates.
Its necessary for your friends to have installed TwitKut on their profiles too for them to view your updates.