Aside from the dual-mode functionality, the 8830 is very much like its GSM-only cousin, the RIM BlackBerry 8800 for Cingular/AT&T and T-Mobile. The 8830 does shed the all-black casing for a sleek silver one.
At 4.4 inches long by 2.6 inches wide by 0.5 inch thick and weighing 4.6 ounces, the 8830 is certainly one of the bigger BlackBerrys we've seen in a while. By comparison, the RIM BlackBerry 8700c measures 4.3 inches by 2.7 inches by 0.7 inch, and the BlackBerry Curve measures 4.2 inches by 2.4 inches by 0.6 inch.
The BlackBerry 8830 comes with a SIM card and automatically switches between CDMA and GSM networks to offer seamless international roaming. This allows you to get voice coverage in 157 countries (22 of those on CDMA) and e-mail coverage in 62 countries.