An article over on Seeking Alpha compares the prices of 5 major mobile phone carriers for BlackBerry smartphones and services, and the comparison is divided into 3 areas…a Blackberry serving as a modem for a laptop…BlackBerry data roaming outside the United States…unlimited United States domestic voice/SMS/email/Internet on a BlackBerry.
The 5 major carriers used in the study are…AT&T, Verizon Wireless, Sprint, T-Mobile, and MetroPCS, although MetroPCS was not applicable for the Blackberry serving as a modem for a laptop.
The bottom line is that apparently there is not one BlackBerry solution that is optimal due to all United States operators having flaws in their pricing structure; for the full comparison and evaluation, follow the link.