N4BB
Thought BIS 2.8 was worth RIM network downtime? Maybe the release of BIS 3.0 and 3.1 will be even more worth it! They are due out in early 2010. BIS 3.0 will be releasing in March with 3.1 release soon thereafter. Here is what you can expect from the upgrades:

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):

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  • 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