ABCNews reviewed the Nextel i930 smartphone, which is made by Motorola. Here's a snip from their review:

The i930 supports Nextel's 800-MHz iDEN network and the global 900/1,800-MHz GSM bands, so unlike other current Nextel phones, you can use it in the U.S. and Europe. Nextel's roaming rates are high, though: from $1.29 per minute in Western Europe to as much as $4.99 in parts of Africa..



Link: ABC News