We have news that BlackBerry Internet Service (BIS) will be updated to 3.0 somewhere in March, 2010. Other sites like CrackBerry and BBLeaks confirm the leaked info on BIS.

Features covered before include:

BIS 3.0 (March 2010):

Improve the Gmail plugin:

• Synchronization deleted messages, read / unread and sent between the box and your own Gmail (so far worked only in the opposite direction)
• The ability to add and remove labels from your device

BIS 3.1 (Soon after):

• Synchronize Google Calendar
• Synchronize your address book from Hotmail account
• Synchronize your address book from Yahoo
• Yahoo mailbox will cause an automatic download of Yahoo messenger on the device

Also there seem to be two new features will show up on the next update.

OpenOffice file support: presentations, text documents and spreadsheets

Support for WMA (Windows Media Audio)