The concept of using Itrezzo software for attachment viewing on Research in Motion's (RIM's) BlackBerry device intrigues me. Itrezzo claims that more than 25,000 people use the company's itrezzoAgent software, and 450 organizations run itrezzoAgent servers, which operate behind the corporate firewall. The software can convert more than 30 file-attachment formats (including Microsoft Word, Microsoft Excel, Microsoft Powerpoint, and Abobe PDF) to plain text for viewing on the BlackBerry. The software also provides global address list (GAL) and URL-lookup capabilities, and offers a print-to-fax feature that lets BlackBerry users print wirelessly. The itrezzoAgent software costs $75 per user. For test purposes, you can download a free trial version, which runs against an Itrezzo server. The software requires BlackBerry OS 2.1. For more information, go to Itrezzo's Web site.