60Communication
OR
▶When viewing a list of labeled conversations, press the
Menu Key 
and touch More > Go to inbox.
To switch accounts
Gmail displays conversations and messages from one Google Account at a time. If you have more than one account, you can open the Accounts screen to view how many unread messages you have in each account and to switch accounts.
1.From your Inbox, press the Menu Key 
and touch Accounts.
2.Touch the account that contains the email you want to read.
To read a message
▶Touch a conversation that contains the message you want to read.
A conversation opens to the first new (unread) message or to the first starred message, if you've previously starred a message in the conversation.
This conversation has one label.
This conversation has one other message. It has been minimized because the message has already been read.
Touch a sender's picture to open the Quick Contact menu.
You can archive or delete the entire conversation or read your 
next, oldest, unread message.
To reread a message
When you open a conversation, messages that you've already read are minimized into a tab that indicates the number of hidden messages.
