BeFTP is a BlackBerry FTP application by BEIKS with a free and premium version. The free version does not remember connections, which can be a problem for those who manage more than one server. The premium version goes for $10.
A recent update to BeFTP adds the following features:
- Upload functionality
- Folder download
- Manual FTP command line execution
- Wi-Fi and other connection modes
There doesn’t seem to be any minimum requirements.
Source: BlackBerry Cool