BIS is the service that delivers e-mail through the phone carriers to your device. BIS 2.8 is their latest upgrade to this service. To take advantage of the new features you do have to be running a Version 5.0 variant of the BlackBerry software on your device--and this is not currently available at most carriers and for most devices. The biggest feature BIS 2.8 adds is 2-way sync for Google Contacts. But sadly, there is no indication that 2-way GMail sync is part of this upgrade. If you're just on a BIS account, you can get your GMail onto your BlackBerry in two ways. First, you can get it pushed to your device to show up in your BlackBerry's native mail program. But this is not a two-way sync. For example, if you mark a mail item as read on your BlackBerry, it will still show-up as unread on your desktop computer. This doesn't change with BIS 2.8. The second way to get GMail on your BlackBerry is through the GMail application. While this works well and produces full 2-way sync, it side-steps your native BlackBerry mail application and mail does not show up instantly but only whenever you manually force a connection or when the program chooses to check for new mail. Again, no change with BIS 2.8.