Key specifications of the Jack include:
The Samsung Jack looks a lot like an updated Motorola Q device and also appears very similar to the BlackBerry Bold or Curve 8900. AT&T customers have some awesome QWERTY keyboard devices to choose from. The specs are fairly standard for smartphones today. I would like to see more about the connections on the Jack, but imagine we will find the Samsung connector for charging, syncing, and a headset when a 3.5mm headset jack and microUSB or miniUSB would be a more standard approach. WM Experts has a more extensive list of specs that include listing a 3.5mm headset adapter so it looks like the standard Samsung port is being used.
The Nokia E71x and Samsung Jack actually have almost all the same specs, including the camera, wireless capabilities, and microSD card slot. The OS sets them apart and both are running mobile operating systems that have been around for quite some time and are not as elegant as the iPhone or Android. The full Exchange support on the Jack is tempting though for those of us who connect to Exchange servers.