PIM Backup gets a lot of press on this site, but the thing to remember is that it only backs up PIM data (contacts, calendar, notes, tasks). If you want a complete system b/u, you'll need to go w/something like SPB Backup (
www.spbsoftwarehouse.com). I recently flashed to a custom 6.1 ROM for my 700WX. I made a complete system b/u, flashed the device, and then ran the backup file. Presto!! Back in business. No need to reinstall programs, re-do email settings, etc