Руди Тиммерманс выпустил фидокомплект для BlackBerry. Несмотря на название "Raptor Fidonet Mailer", судя по скриншотам, это не только мейлер, но и тоссер и редактор.

Приложение можно купить в BlackBerry World за 6 евро.

Raptor Fidonet Mailer for BlackBerry.

Client application for FidoNet, world⌂s first social network.
Easy in setup and usage.
It provides basic functionality for mail and echo conferences ex.
Application implements Binkp v1.0 to connect to network nodes.
Message stored in SDM and Squish formats (for netmail and echomail
respectively).

You can download and buy the final version  BlackBerry World here.

Important: Raptor is not fully compatible with SBBSEcho as tosser, because
SBBSEcho does not place MSGID into Netmails !
Echo Mail there is no problem !