Rumours are suggesting that RIM is about to unveil the BlackBerry 8700. One version will support EV-DO and another will be an EDGE model. Both will come with built-in GPS, 64MB RAM and the ability to view email attachments natively rather than requiring third-party addons. On the other hand, the 8700 will not come with camera or WiFi capabilities.
If the rumours are true, we should see the 8700 in the next few months (before Christmas?).